OK guys this card is absolutely
D.E.A.D.! Now even with the 2D drivers I got blue stripes all over my screen (yeah framebuffer).
So I ripped it out and luckily I've got a HD3300 IGP, but even that card doesn't work with the Catalyst drivers. Installed it, rebooted, booted into a root shell, did
aticonfig --initial and then
reboot but even that didn't work. Same crap. But the 2D drivers are working with this... IGP.
So now I'm on Windows and absolutely had it with Linux now (for one week probably untill I get absolutely fed up with Win$hit Xperience Pain xD) just because I want to play a simple game of Quake Live that does not go over the freaking soft-pipe with 0.33fps
Anyway thank you for all your time and I hope I can get warrenty on my HD4870x2 (I don't know if I have this card for over or less than a year, so...

)