Differering number of items detectable

Hi. I run Spybot on two computers, both fully patched Windoze XP SP2. Both versions of Spybot appear to be fully updated (5/26 being the last addition). However, one machine shows a bit over 41000 items detectable, the other only abougt 39000. Is there a problem? Can anyone explain what might be happening?

Many thanks!

Hi,
Check your settings in Spybot under Settings>File Sets. I have the feeling that Usage Tracking and Tracks.uti is checked in one computer and not in the other.
Sincerely, Libra