Forget about the reinstall thing. I didn't read your post closely enough and thought you were upgrading an old one.
What did you use to install Windriver? Most likely you have an old version. download
the update and try that. It should erase all FRC libraries and re-load them with the latest version. Can't hurt to try
Also I heard from one of the beta teams that the new code is not 100% compatible with the old code. Old stuff might not build correctly