No solutions, but I feel your pain. I've had major trouble installing Flexbuilder 2 and Flexbuilder 3 beta trials on Vista Home Premium, I never was able to get it to work. That after multiple proper uninstalls/re-installs and asking on this list about it. Extremely disappointing. The installers ran, and then when you go to launch, it gives an error and fails (can't recall what the error was, but it was Flex specific, not a Vista error). Installs of FB trials on Windows XP worked fine. However, you mentioned you also installed the Flex SDK, which I have installed on Vista Home Premium and it works fine in conjunction with FlashDevelop as the editor. I don't know if installing the SDK is what messed up my FB trials, as you may be experiencing that as well.
Jason Merrill Bank of America GT&O L&LD Solutions Design & Development eTools & Multimedia Bank of America Flash Platform Developer Community

