ext3 trouble

 Hello everybody

I am experiencing a strange problem with ext3 partitions.
I have several computers running unstable and they started having
troubles with partitions. Disks get corrupted all the time.
When it happened on one of the computers, I thought it was a drive
problem, but on several at the same time -- sounds strange.
Is there anything interesting happeneing?

The systems run different versions of 2.6 kernel.
Is there anything I can check?

Thank you very much for your kind help

Lazar