Hi Waldorf,
Logged in as you and edited the post no problem. So I really am at a loss for why you are having problems. Like Rizgar I could log in as him without any problem, but he couldn't see the threads, now that was weird. He had to reinstall Windows, then it worked fine!?! Weird. But I'm not suggesting you should do that!
I think it has to do with the cookies stored on your pc. Try logging out from from the Overview page at the bottom right. Then if your using IE go into Tools->Internet Option->General->Delete Files-> tick delete all offline content then click the delete button.
Does the problem happen for editing all your postings, or is it just this thread?
Sharky.