Help with P55M-UD2

[mfajmut]

I recently bought a new computer (i7,8GB RAM (4 x 2GB), ATI 5850, 1TB,...) and I'm having this problem :
Everytime in the morning when I start the computer it freezes at Starting Windows screen, and then I can do million restarts and it will go through, but next day when I start it, it freezes again.
I upgraded BIOS etc, etc, nothing helps. In the store they already changed the motherboard (before I had UD2H), but that obviously doesn't help.

PLEASE HELP!!!

[decrypter]

When it freezes do you also lose ability to use mouse n keyboard ?  if so its prolly uncompatable ram installed , especially if you changed mobo allready , go check your ram is on VQL for your mobo

[mfajmut]

Yes...it freezes on this screen : http://www.15seconds.com/graphics/issue/090109_02.jpg, and I can't do anything.

What is VQL ?

[mfajmut]

Uuuuu...i found this - Latest memory support list : http://www.gigabyte.com.tw/FileList/MemorySupport/mb_memory_ga-p55m-ud2.pdf

I have : 4 x 2GB Geil GV34GB1333C7DC DD3

Is this the problem?