I re-installed the 8400, Device manager, uninstalled drivers, restarted w. 8400 still in it, and had huge desktop icons. Went to ATI site, installed drivers, but they detected a diff. device. Shutdown, put in the 5670, and got nothing. I can't get to safe mode b/c it won't even boot.
The one thing I didn't do was clean the registry. Should I do that after I uninstall drivers and before the restart? As in clean sweep, registry clean, ati drivers, shutdown, swap cards, try to start?
My apologies for my ignorance but I've always had Nvidia cards, so this problem is a first for me.
Thanks for the help. Gunnersfan