• Windows Users
• Mac Users

1. Windows XP Service Pack 2 - Settings of the new Windows Firewall can prevent the client from launching or creating an FTP connection. Try turning the firewall off or set it to prompt for exceptions such as FTP.
2. Various Anti-Virus Applications – We have found that the home use versions of the Norton Internet Security/Antivirus and McAfee Security applications can prevent the client from starting. Try disabling these temporarily if the client will not start and turning them back on after successfully starting and installing shortcuts. To do this, open Control Panel and Administrative Tools and go into Services. Find the Norton or McAfee security services (proxy agent, firewall, network monitor, etc.), right-click on them and select Stop.
3. Internet Explorer (IE) Security Settings – If set to high may block the ActiveX calls made during the client launch. Try resetting Internet Explorer’s security levels (found in IE under Tools – Internet Options – Security tab) to default.
4. Internet Explorer Pop-Up Blocker – This is a new option that installs with Windows XP SP2. Try turning this off in Internet Explorer under Tools – Pop-up Blocker.
5. Clear out your Internet Explorer cache – This can be done in IE under Tools – Internet Options. On the first tab, General, look in the center section marked Temporary Internet Files and select Delete Files. Click OK at the confirmation window, wait for the mouse pointer to return to normal from the hourglass, and try the client launch again.
6. If you have run ROES before on the system and it is suddenly failing with an Invocation Exception error, after clearing out Temporary Internet Files in the steps above, remove the ROES application from Java Web Start to ensure a fresh download and install. Select Start - Run, type javaws.exe and press Enter. When the Java Web Application Viewer opens, find the ROES application for your lab and highlight it. In Java 1.4, select Application and Remove. In Java 1.5, click the button at the bottom to Remove Selected Application. This will remove the lab’s ROES from your system along with any desktop shortcuts. To reload, go to the lab’s web site in your browser and click on the ROES start link.

Java 6 Update 11 and higher - We have seen a number of ongoing issues with client launches due to Java updates to 1.6 update 11 through 13. While many customers and our team here are not seeing any problems, it may be best for those who experience this issue to roll back to Java 1.6 update 7 (http://java.sun.com/products/archive/j2se/6u7/index.html). The startup issues we have seen are primarily shortcut related on Vista. Before removing update 11 and reloading update 7, it is recommended to clear the Temporary Internet Files from Java Control Panel, as follows: 1) Open Windows Control Panel; 2) Click Settings... in Temporary Internet Files at the bottom of the General tab; 3) Click Delete Files...; 4) Click OK at the prompt to remove all applets and applications, etc.; 5) Click OK to exit out of Java Control Panel; 6) Start ROES from the lab web site link.

JNLP File Not Recognized On Vista - In several instances, the launch.jnlp that is being downloaded by Internet Explorer or Firefox does not seem to have a program associated with it. In Windows Control Panel, Default Programs, .jnlp is not shown in the list presented when Associate a program with a file type is chosen in the choices for Default Programs. To fix, download the launch.jnlp to the desktop, right-click on it and choose Properties. In the dialog, click Change and then Browse to Java and JRE6, then bin, choose javaws.exe and click Open. The Open With dialog should then show Java (TM) Web Start Launcher, click OK and then OK to close the Properties dialog. Double-click on the launch.jnlp and the program will start, from then on the desktop icon should work.

On June 16, 2009 Apple deployed an update to OS X 10.5.7 for Java via Software Updates. This update has performed some restructuring of the folder path to Java Web Start, and fails to retain the file in its' expected path of Applications - Utilities. Attempting to launch a ROES shortcut results in the icon bouncing on the dock and nothing else occurring.

To resolve these startup errors, you have to manually associate the jnlp file back with Java Web Start. On the jnlp file cntrl+click and choose open with. Webstart will be located in the Mac hard drive/system/library/core services/  folder.

1. Click on download ROES from the website once you have your account up and running
2. A file called launch.jnlp will show up on your desktop
3. Your Mac could crash at this point
4. Hit the 'Cntrl' button on your keyboard, and single click on launch.jnlp that just showed up on your desktop
5. Select "Open with..."
6. Browse to the Mac "HD/system/library/core services/"  folder
7. Select the "Java Web Start" icon

1. Open: Finder > Go > Computer > Macintosh HD
2. Search for 'ProMPIX'
3. Right-click ProMPIX (control+mouse click if you have a one button apple mouse)[control key is left of space bar on Mac keyboard]
4. Choose 'open with' and follow file path: Macintosh HD > System > Library > CoreServices > Java Web Start
5. Select Java Web Start and check the box 'always open with' in the lower left corner of the selection window

• Core 2 Duo Systems:To get a new shortcut, open Java Preferences.app from the same Utilities folder and click the Network tab, then click View cache at the lower right to bring up the Java Cache Viewer. Use the menu or icon to create a desktop application or shortcut as desired.

• Core Duo and Non-Intel Mac:Shortcuts seem to be able to be created but WILL NOT EXECUTE. You must run from the lab's ROES link on their web site or from their ROES listed in the Java Cache Viewer, accessed from Finder in Applications - Utilities and open Java Preferences.app. In the Network tab, click View to open the Java applications list.

We will continue to investigate the shortcut issues in non-Core 2 Duo systems. At this time Apple Development has confirmed this is a major bug (http://lists.apple.com/archives/java-dev/2009/Jun/msg00186.html) and seems to have no easy workaround.

 Alert: Beware Mac Cleanse

Mac users who experience startup issues with an error whose Details lists "unable to load resource: localhost/users/'user'/Library/Caches/Java/cache/javaws/http/...../AMlaunch.jnlp" may have a program called Mac Cleanse being run manually that is deleting the Java cached files for use in future launches. This is a small utility to clean up browsing histories, etc. that deletes the needed folder path for re-launching the program. We have run into this a few times and fixed the users remotely by rebuilding the path listed in the error manually (in Finder) and ensuring the needed file is found (using the downloaded launch.jnlp and renaming it AMlaunch.jnlp, placing it in the path listed, and double-clicking on it to start ROES). This issue also occurred with updates to OS X 10.5.4 but should not be seen from Apple updates now that 10.5.7 is released.