One of my SJ users (who also happens to be the MD of
the company...) is afflicted by the summer time/winter
time changeover problem, whereby the entire archive
appears out of sync with his local repository after GMT
becomes BST (and when it changes back to GMT in Autumn).
Following the recent GMT/BST change over, he has
discovered that if he switches "Daylight Saving" off
and manually changes his clock, the SJ client considers
all local files (that are in sync) to be correctly in
sync with the archive.
The archive server (Debian Linux) does the GMT/BST/GMT
changeovers correctly using NTP, and none of our other
six developers (and 13 general users) has this same issue.
He's using Windows XP if that helps with the debugging.