Cao guys,
diky za prozpevky, ale problem je vyresen.
postup? tady je:
1 - uninstalace ATi driveru
2 - driver celaner 1.5
3 - instalace Catalyst 7.4
4 - instalace RivaTuneru 2.1
OC, 2D & 3D - everything works perfectly.
problem seems to be resolved.
thank you all for help
btw: oc GPU je 621MHz (original je 500MHz) a VRAM jedou zvlastne, pohybuji se nekde mezi 700-750MHz