online update with yast

> Hi,
>
> I've recently tried to update my suse 9.2 installation using yast2.

> However I keep receiving rpm signature errors from yast no matter
which
> source I use. Has anyone else experienced this? How can I correct

this?
> I tried rpm -Uvh with one of the rpm files yast had downloaded. It

> reported a warning "no signature" but installed fine.
>
> Cheers,
>
> Randy

i was getting that error when i used the yast update untill i just
reinstalled suse 9.2!
Worked for me!