Basically been using the standard XP time synch with the synch rate increased dramatically, couple of times a day. Thats been working fine for a year or two and has just started to fail with the error message "peer's stratum is less than the host's stratum" or more strictly I just noticed that the PC time is well out, few minutes, and checked and saw the error message. Same result on multiple PC thru the adsl router. None of the other US time servers I tried worked, tho they just say error, not that particularly cryptic error message. Turns out that using a local time server, ntp.cs.mu.OZ.AU works fine. Nothing much useful turns up with groups.google or google, tho I didnt carefully read every hit. That time server turned up there.