Blue ScrEeEeNs but no driver is shown ? (Minidumps are zipped and ready)

I use to have Crashes when i surf the net , and the problem was solved by uninstalling the nVidia Firewall , and never came back again.

Now i am getting that BSOD occasionally especially when i do a multi process like recording and Rending in another program on the same time, and some times it crashes when i do nothing but recording Using the Telex Zing Audio Digitizer,

the message on the blue screen varies from crash to another even though i did not install a new Soft\hardware, nor use different programs.

The Last 5 minidumps are zipped on this file :

http://www.jawaly.org/M300SEL/program/Minidumps.zip

What amount of memory is installed, and have you thorougly tested it.

i am using 2GB of RAM , the Kingston Hyper X 2GB pack , on Dual Chan.

Boared is Abit KN9

using AMD Athlon 64 X2 3800+

OS is Win XP pro

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I hav not tested the memory , actullay they are a new purchase , how can i test them ?

Now i am getting this :

BAD_POOL_HEADER

STOP: 0×00000019


:(

attached to this poste is a screen shot of my Device maneger after i choosed ( show hidden devices )

there are tow which has the yellow ( ! )

one is called : Parport the other is Serial

cod this be the link to the problem ?

Mine's the same. Test your RAM with Memtest (http://www.techspot.com/vb/topic62524.html).