I've seen this reported before by users who installed a Windows update and subsequently were unable to open jEdit. I did not install any updates, though, just tried to go to work this morning with no luck.

I installed jEdit with the Windows installer about 3 months ago on this machine, which is running Vista Home Premium, and have had no problems until today. Now, when I try to open jEdit, a javaw.exe process is spawned and hangs. This happens whether I run through the installed shortcut, directly run the exe, or run from command line, and regardless of whether I run as administrator. I've uninstalled jEdit to try different releases, and I cleared all temporary and application data and rebooted after each uninstall. The same thing happens regardless what I try. Also the latest Windows update I've installed was on the 20th and I tried uninstalling that (didn't help).

Any assistance would be greatly appreciated. I've used jEdit almost exclusively for about 2 years now - it's become a very powerful tool for me so I'd hate to have to move back to other editors.