Tjank you Simon,
we changed the card for HD 7950 mac edition. Problem solved.
Tjank you Simon,
we changed the card for HD 7950 mac edition. Problem solved.
David Monguet
davidmonguet@gmail.com
If you turn little switch on the ATI I will get same problem, ATI 7950/7970/8970 have BIOS/EFI firmware.