Vista - Yahoo messenger and JIT Debugger Errors

Periodically, when im closing various browsers or applications I get the
following messages for seemingly no apparent reason>

"A Runtime Error has Occured.
Do you wish to Debug?

Line: 567
Error:'lastUpdateTime' is null or not an object

Yes No"

If i select no, it doesnt close. If I Select yes, I get another message.

"Microsoft Visual Studio Debugger
An exception occured. Process will be terminated. (Exception address is
00413E6C)"

This then dissappears and yet another message appears

"An Exception 'Runtime Error' has occured in Script.

However, no debuggers are registered that can debug this exception. Unable
to JIT debug."

I am using Windows Vista Ultimate with all security patches up to date. AMD
Athlon 64 3200+ with 1Gb ram.

Anyone help or is this just another one of Vista's many glitches????
--
David

Did you ever get an answer on this? I have the same problem!
Thx
Julie

I have the same message, but it started when my McAfee's got "stuck"....that is, the download icon wouldn't come off my toolbar and nothing was downloading. I removed McAfee's and put AVG on instead. Then, my RealArcade started bringing up that same error re: Microsoft Visual Basic debugger exception 00413E6C. I tried support.microsoft.com, but got nowhere.