pixie, you’re using AVG and Avast on the same machine? Not a good idea!

You must not do this - you must choose either avast or AVG.

That was one of the dumps.

The second one seems to be related to something very different - audio handling. Namely, in KS.SYS.

Since you don’t have SP2 installed, this MS KB article seems to be directly related to this: http://support.microsoft.com/?kbid=812035

Cheers
Vlk