I'm not sure if this is the right forum so I posted in the portal forum as

Some of my users get the following errors when trying to save their
answers the first time for challenge response. These are all done on a PC
w/ XP sp2 and IE.

Answer Challenge Questions
Error: Task could not be completed.
An error has occurred when attempting to save Challenge Response data.

Change Challenge Response again

Any help would be great. I am stumped.