Microsoft updates have been known to have adverse side effects. (e.g.
http://support.microsoft.com/default...b;EN-US;841382 ) Can you roll back to prior to the patch installation?
I think there is some sort of roll back function in XP - touch wood i have not needed it so far so can't add much more.
As the error talks about a missing description it suggests a software error, however as you get the same problem on both machines could it perhaps be a firm ware or data corruption problem on the memory card. Perhap something like the card lable or version is corrupted and hence the software is unable to start.
Is there a way to return the memory to a blank, as shipped status?