I'm finding that with build 6755 "Find Usages" hangs and even if I put it in the background the IDE is wedged and I need to force a shutdown. This does not happen all the time, for example if I restart the IDE and try a few "Find Usage" commands they complete fine. It's just after a time, after a few Tomcat runs/debug sessions where I see this problem. 6708 did not have this issue but I think 6733 did (if I recall).
I'm on Mac OS 10.4.8. My project is pretty large (>1000 classes and ~40 libraries). I did remove my Cache before trying 6755.
Has anyone else seen this problem? Thanks.