Ki,
Well, it lasted (worked) for only an hour or so this time. I think I made less than 50 edits when it stopped working, I didn't keep track. Ctrl+Q now goes to a previous search location in the c file I was working on but I didn't make an edit there. So it seemed to confuse a search location with the last edit location after several edits.
I am not going to delete other projects from the workspace to experiment. I'll bet that you are not developing code making many edits, which is why you don't see the problem. Is this correct?
Anyway, whether or not you can replicate the problem there is no solution for me since I really don't want to "upgrade" to V6 not knowing if that even has this problem fixed. It's not worth the gamble.
This was not listed in the release notes, so either they fixed it without mentioning it or didn't fix it at all.
Thanks for your help. If you find out anything, please post.
Ed