Thanks for the quick reply on that. I may end up doing the same thing. Although my workstation is a few years old, the it is still a smoker. With 8 GB of RAM and an 8 core Xeon E5520 processor, and a 256 GB SSD, the performance is stellar, even compared to brand new boxes I purchase for clients all the time.
It seems that in the past few years there has been a leveling off of laptop and desktop performance improvements, with more innovation showing up in smaller form factors, like smartphones and tablets. At present there is no compelling reason for me to purchase a new machine considering this is used for IT work, general office work, etc. No gaming, high end graphics, or other demanding applications (well, OK, I do tend to have lots of windows and applications open at any moment).
Anyway, I may just try this fix or see if there is a more current card that will work as well.