hmm, I don't have any experience with the UD client. It might jump back up to 24%ish after a few mins. Usually if i have to restart the BOINC I will lose a few percent of a WU but not something as high as 24%.

What project is the client running?

See the attached link below, it seems that quite a few people have had problems with checkpoints and the UD client.

http://www.worldcommunitygrid.org/fo...d?thread=11742

Checkpoint info for the different projects:

http://www.worldcommunitygrid.org/fo...d?thread=11332