Memory issue

[impiro]

My PC in short:

Intel Quad Core 6600 2,4 ghz
Geforce 8800Gt
4 gb's memory 2 x 2 kingston

Error:
Failed to grab 1GB of contiguous memory!
Do you have a viruscanner or bad video driver blablabla.

So I turned of my Kaspersky... same result on every ISO far