do you mean that your temp folder is full of temp files, and the rars haven't appeared in your download folder?
indeed
Or do you mean unraring has failed?
Cant see rar files
Also, please post any relevant log messages
There is no error in the log
as well as details of your system, OS, etc.
intel 4 2.8 ghz, 1536 mb ram, 120 gig hd, Windows XP home