I just upgraded my sys to Win 7 and now Illustrator (Photoshop too) only allows me the use of one monitor. I have an ATI Radeon HD 4600. I installed Catalyst 10.6 for Windows 7 and the driver shows a date of 5/27/2010. When I launch CSAI5, I am limited to one monitor (my main) even though both monitors are on that card.
What I have:
Windows 7 Home Premium
AMD Phenom 9750 Quad-Core 2.4 GHz
8 GB RAM
I uninstalled and reinstalled the entire suite but that hasn't helped. Any ideas?
And yes, all my other programs behave.
[This has also been posted in the Photoshop Form.]
See my reply in the PS forum.