If IE 6 and my machine I'd not have this issue but then again if I did I'd "shoot it dead" by running HIJACKTHIS to eradicate the Live (soon to be dead) addins. Which are the Live addins? Usually it's a BHO.
What's a BHO? See google.
Which addon? Use HIJACKTHIS and research the items on Google.
What's HIJACKTHIS? A power tool with 50 caliber magnum force found with Google.
What's Google? A search engine.
What's a search engine? Sorry, I think it runs on ethanol.
I am getting a dialog box asking me for my Windows Live ID or hotmail account and password. This appears whenever I use Windows Explorer (version 6) under Documents and Settings. If I cancel, it comes back within seconds. Eventually, if I get to another part of the C: drive, it stops.
I also get a slightly different dialog box regularly asking for my network password. Same thing, if I cancel it goes away. I can access my email (Outlook 2003) or my MSN without any problem.