Thanks for asking
Mac OSX wouldn't boot and neither would the Snow Leopard install DVD, openSUSE Live would boot and function normally but was quite slow, Kali Live wouldn't boot. This is the first and only Mac I have dealt with so I had no other compatible cards
In the end I replaced the motherboard first as this was cheaper and this made no difference so I replaced the graphics card and it's now working fine so it seems that the text corruption was part of the problem. If I use UBCD now with the new graphics card there is no text corruption and the Video Stress Test is successful although still only reports 14MB
Thanks
Mac OSX wouldn't boot and neither would the Snow Leopard install DVD, openSUSE Live would boot and function normally but was quite slow, Kali Live wouldn't boot. This is the first and only Mac I have dealt with so I had no other compatible cards
In the end I replaced the motherboard first as this was cheaper and this made no difference so I replaced the graphics card and it's now working fine so it seems that the text corruption was part of the problem. If I use UBCD now with the new graphics card there is no text corruption and the Video Stress Test is successful although still only reports 14MB
Thanks