First off, I'd like to say that IDEA is definitely starting to feel smoother and smoother on the Mac so kudos to the team for treating the platform seriously. Sure, the new fonts are big, but the only place they really bug me is in the pop dialogs in the editor.
But the one problem I don't seem to be able to work around is debugging. It could just be a configuration problem since my project was originally set up under IDEA 3 but when I set a breakpoint, I get taken to the class interface instead of the source code. I haven't been able to find any settings that seem to affect this. The source is clearly part of my primary Java module and I have no problems reaching it with the Project or Package browser.
Any thoughts would be appreciated.