Note regarding v4.0.1
Published January 21, 2008
A few people have reported crashes when opening a project or saving a file. I've not been able to reproduce yet, but the crash is caused by the code indexer. If you experience this issue, you can workaround by disabling the code indexer in the "Completion" preferences. Apologies for the inconvenience.
Update: I believe I have a fix. I've sent a build out to the testers. If all goes well, I'll do the release later this week.
Update 2: This has been fixed in v4.0.2.