Is this an Ajax error?

[ken s]

I added HoverMenu functionality from the Ajax Control Toolkit to my app and
it works fine in most cases, but for certain fuctions I get the following 2
errors. Can someone tell me what might cause these errors and suggest a way
to fix them?
Thanks
/Ken
====

Webpage Script Errors

User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR
1.1.4322; .NET CLR 2.0.50727; InfoPath.1)
Timestamp: Mon, 23 Jun 2008 21:55:40 UTC

0.
Message: Sys.InvalidOperationException: Type Sys.Timer has already been
registered.
Line: 701
Char: 49
Code: 0
URI: http://localhost/demo.psts/secure/ExceptionList.aspx?f=Find

1.
Message: Sys.ScriptLoadFailedException: The script
'/demo.psts/ScriptResource.axd?d=z6JKBUgIbR9lVNiaa-VK1A5ZYACMygYsdzhZgCb57H_ZBU1ckC_m8jtzJ4OASCCT-uU0Y1ii2YWZoOUKFEwNPA2&t=633398780400000000'
failed to load. Check for:
Inaccessible path.
Script errors. (IE) Enable 'Display a notification about every script
error' under advanced settings.
Missing call to Sys.Application.notifyScriptLoaded().
Line: 3312
Char: 13
Code: 0
URI: http://localhost/demo.psts/secure/ExceptionList.aspx?f=Find

 

[ken s]

Hey Microsoft guys, can I get an answer -- even if it's "I don't know"?
Thanks