Hmm, I can't seem to replicate that behavior here. I use Opera for testing issues like these, which I have set to wipe out everything upon exit. I just opened it up, typed in the address, logged in, and it says I'm logged in okay.
Okay, I think I see what's happening, you're probably typing in peachparts.com, not
PeachParts - Mercedes Parts & Tech Info. Is that the case?
-Wayne