We have this same problem on a few workstations that were recently rebuilt. I have tried this solution on one and it fixed the problem. Thanks a bunch for this info...
The latest version of 2001 that you can use with Pro/Intralink 2.0 is build 2001200. We have the same situation here. All of your other engineers will soon be experiencing these same problems.
We have 8 Leadtek GF4 Ti4600 cards in Pro/e machines and our engineers like them very much. Our old machines had Elsa Gloria II cards and these are every bit as good or better performance wise. Stay away from the GF MX cards, I don't care for them though...