[plug] Swap problems

[Daniel]

Hey guys,
I'm not sure exactly what the problem is.. but the machine is a web-server,
runs apache/mysql/sendmail/etc.. and it seems to halt every now and then not
showing any sites - and sometimes it goes down completely - CPU usage is not
THAT heavy usually, but the swap file tends to get filled up to 100% at the
exact times when the problem occurs

Any ideas as to what it could be?

Regards,
Daniel