powerdns not get zone

[michal krajcirovic <konf@krajcirovic.cz>]

hi,
we have problem with powerdns.

Jun  9 09:01:16 uplin01 pdns[6709]: Domain puzzle-trade.com is stale, 
master serial 2006012301, our serial 0
Jun  9 09:01:16 uplin01 pdns[6709]: Domain spsobeslav.cz is stale, 
master serial 2008020301, our serial 0
Jun  9 09:01:16 uplin01 pdns[6709]: Domain shokarta.net is stale, master 
serial 2006012301, our serial 0

of this is probably the obvious problem - it can see the slave that has 
a different serial than the master, but not download zone at each other.
met with this problem anyone? Google helping me so far.

thanks a lot.

m.