Leopard was working fine, everything was perfect but now I upgraded my video card from ati X1900XT to geforce 9800GTX and it won't boot. In -v mode it says nvidia unknown or something like that and if I boot normally, the with screen with the spinning wheel, it just freezes after a while and it shows the gray screen that says to reboot. How could I disable any graphics or video drivers? I just want to boot in the most basic mode and install the proper drivers. Any ideas?

Try rebooting. -v -x -f this should get you in safe mode. I am at work. You may have an app that will write to the bootlist about the new card. It is most likely a drive issue. Someone should give the name of the app.

Ciao,
Lou Cioccio

I found some old drivers for geforce 9800gtx on this forum somehere so I put the old video card into my computer and I booted up in leopard and installed them. Put 9800gtx back in and now in boots but I can't get them to work very well, menu is not translucent etc not fully installed. Does anyone know what are the newst drivers for this?

OK so I fixed it, followed these instructions and it now says quartz extreme supported and hardware accelerated to something else can't see now I'm in vista but it's working perfectly, just followed this:

http://forum.insanelymac.com/index.php?sho...;p=742593&#