Here is some atomic clock stuff: This is a link to some general stuff. <A HREF="http://www.ubr.com/clocks/timesw/timesw.html" target="_new">http://www.ubr.com/clocks/timesw/timesw.html</A> This link is to a long list of freeware and shareware. <A HREF="http://download.cnet.com/downloads/1,10150,0-10001-103-0-1-7,00.html?tag=srch&qt=atomic+clocks&cn=&ca=10001" target="_new">http://download.cnet.com/downloads/1,10150,0-10001-103-0-1-7,00.html?tag=srch&qt=atomic+clocks&a...</A> A couple of commercial sites. <A HREF="http://www.greenparrots.com/ats.html" target="_new">http://www.greenparrots.com/ats.html</A> <A HREF="http://www.altrixsoft.com/" target="_new">http://www.altrixsoft.com/</A> I know that I installed one of those programs at one time a couple of years ago, but I cannot seem to find it on my PC. Troy