FYI, if you aare running Windows 7, but running the IDE through XP mode, and the project files are not in the virtual XP drive, it doesn't seem to want to compile. If you move the project to the virtual drive it compiles normally.
It's a glitch we ran into since we have a couple different firmware revisions running right now, so a couple of us are running version 1.5 in XP mode.
Regards,
Jay