MY New ATI Radeon 4850 crashes

[emrosmule]

while Watching YouTube Videos.
sometimes i see the Blue Screen of Death
and sometimes the screen goes black.
but i can still see the mouse. when i move it
it has a 5sec delay



Asus M3A
AMD Phenom 9950 Quad-Core Processor
4GIGs of RAM
Windows Vista Ultimate 64

 

[evongugg]

Welcome to the forums!

Tell us about your power supply.
Check the temperatures of the card with GPU-Z.

 

[emrosmule]

a BFG 650-Watt power Supply
using ATI Drivers 9.4

48c @ idle
about 61 @ Load

 

[evongugg]

Download codecs and install them.

 

[EXT64]

Does it crash in any 3-D apps (like games, etc.)?

 

[emrosmule]

Nope i played games for Hours and nothing happens
only crashes on Youtube (i use Firefox and Google chrome)
and it does crash when i turn it on From Sleep Mode