Hi,
thanks for the help, you all are right, I hadn't set the timezone 
correctly under MacOS, so that the booter gave me the wrong GMT-Bias 
and I wass running on GMT an hour off so that the time displayed 
seemed correct. Sorry could have noticed that myself.

I fixed that and now Xntpd sycs to the server, loses sync , syncs again, 
but after a while it stopps doing that. I guess it's when I start 
xlockmore. (I start it with nice +19, hoping that this way it wouldn't 
cause too much of a load if anything else needs computation time.) Does 
that take up too much computation time so that the clock getts too far off? 
Well but thats not the real question I have. 
How do I force xntpd to sync again with the server? It seems to me that 
once it lost the sync and doesn't sync with the server at once (within 7 
to 10 min.), it won't sync any more at all.
Any suggestions, or hints?

Henning
 
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Henning Loeser            AG-Oberfl"achenphysik, Philipps-Uni-MR
Email:henning.loeser@physik.uni-marburg.de