Acrobat issues with Radeon 6350 in Windows 7 x64

All the computers having issues run Windows 7 x64 and Acrobat Standard X with dual Radeon 6350. These are all new computers for a new satelite office.

At the main office all PCs are Dell 790 with Nvidia NVS 420. We only switched because Dell didn't appear to have the Nvidia as an option anymore.

All other software and hardware configurations are the same. All computers run triple E2211H (some E2210H) mounted to Ergotrons.

Acrobat has the latest updates and drivers for the ATI cards are the latest. The drivers right before the latest experienced the same issues. The drivers that came with the PC would not recognize all three screen consistently.

The current issue is Acrobat starts to not displaying correctly (similar to RDP session on a really slow connection) and if left running will eventually hang the PC to where the only thing that can be done is open task manager and kill Acrobat. While I would like to blame Adobe the problem is completely non-existent on 90 other machines running identical hardware and software except for the video cards.

Any help with this would be greatly appreciated.