Problems with TSIG/DNSSEC

[Vinson Armstead - PA]

While experimenting with TSIG & DNSSEC I am receiving the following errors
on my master name server:

Aug 16 10:08:03.318 dnssec: debug 2: tsig key 'server.domain.com': signature
is in the future
Aug 16 10:08:03.318 security: error: client x.x.x.x#1024: request has
invalid signature: tsig verify failure
Aug 16 10:08:03.825 dnssec: debug 2: tsig key 'server.domain.com': signature
is in the future
Aug 16 10:08:03.825 security: error: client x.x.x.x#1024: request has
invalid signature: tsig verify failure

I have checked the "key" & "server" statement on both the master and slave
(basically copied the text from one to the other).

Zone updates and transfers work fine without using TSIG.

Any suggestion??

Thanks in advance

> Vinson