I had an issue (now resolved), and I'm just curious to see if anyone else has had the same issue. I've been using C# Express for quite a long time now (you just can't argue with the price), but a few weeks ago my installation suddenly wasn't registered, which was quite peculiar since I remembered registering it. In fact, I saved my registration code in a text file, because I do that, so I had my registration code which proves that I did indeed register it. So I put the registration code into the "Register This Product" window and it rejects it. So I go to log into Microsoft's website, and apparently my account has ceased to be. I don't know if Passport accounts didn't carry over to Live, or what, but the account I registered C# with was gone. Is this problem unique to me?