Plesk 8.0.1 Control Panel problems

[condar]

Hi,

I have updated plesk from 7.5.4 to 8.0.1. And Then I have several problems about plesk.

This all problems solved out of one.

SO that is plesk sometimes locks our server. Especially when i open a server tool ( add mail, open spam settings or etc.) our server is lock.

I think that maybe is psa admin permissions or firewall.

I firewall deactivate but this problem doesn't solve.

So then, I changed psa/admin folder' s fýle owner from root to psaadm. But this problem doesn't solve.

I awaitin help about this problem.

Thanks