I upgraded Flex Builder on my windows box (actually in parallels but who is counting) last night and had a bit of trouble. I downloaded the trial from the Adobe site last weekend and ran the installer. I just assumed that I had everything together and kept on working. I thought everything went great.

Then last night I was working on the demo app for my presentation to the Seattle Flex UG this week. I wanted to look up the syntax for loading a CSS stylesheet at runtime but i couldn’t find it in the docs. Well I remembered that I only had to right click on the css file in Flex Builder and then it would give me an option to compile. But the css option was not there either. I checked my version of Flex Builder and it said 2.0.1xxxx something. So I thought I must have things right. But that just turned out to not be the case.

I re-downloaded the trial installer last night and ran it again. Still no change in my files. I thought that was really weird, so I did a full un-install and then I ran the installer again. This time everything was just as I hoped. All my projects were fine, and I had the new updates that I had been missing.

Not sure what I did wrong, or if somehow I just go the wrong file to begin with, but if you run into issues where you dont have the information you think you should. Make sure you uninstall before you reinstall. Or if you already have Flex Builder installed then make sure you get the updater and skip all the trouble.