Hey Djamyx!
I TOTALLY understand ure frustration. I had the same prob last year with MSN 4.5
I installed it as prompted and couldnt send messages and then it would freeze signing out. I sent multiple emails to techsupport and they had NO clue as to the prob. I have windows 95 but I have IE5.5
They kept insisting I had some virus but I was CLEAN AS!
Since then I have used the older version of MSN, but its damned annoying getting prompted everyweek to download new version. TODAY i made the big mistake of downloading the newest version thinking they might have fixed the prob. NO SUCH LUCK. I come up with all the same error messages as u did!
Looks like its back to trusty 3.6 again. Unless anyone can tell me what my issue is!