On Jun 9, 4:34*pm, "
wrote:
PS—I just switched to XP/SP 3 on the same machine and Catalyst extends
the screen on to the second monitor with no problem at all. I hope
that the X1900 is simply incapable of doing this in Vista!

I meant:

PS—I just switched to XP/SP 3 on the same machine and Catalyst extends
the screen on to the second monitor with no problem at all. I hope
that the X1900 isn't simply incapable of doing this in Vista!