By the way, in case anyone is having a problem with the screen lock, S2U2 has a new (ok, it was new to me) version out (
v2.04, 10 July 2009) and it is working perfectly for me. I had upgraded to 2.02 a little while ago, but it kept crashing on me, so I went in search of a new release, and wala... now my screen lock works perfectly again
Anyway, just FYI...