squirrelmail and cpu load

hi
A user installed squirrelmail this morning and I noticed an increase of cpu load.

normally the load is like 0.1 - 0.4
now with squirrelmail running it went up to a constant 1.7 - 2.0 and top showed for that user %CPU 28% average.

i killed that process for now. it came from his folder /squirrelmail/config/conf.pl

what is the normal procedure to limit that cpu usage?
when i did a "edit resources" his website went down
(limit processes to 5 and cpu to 5 minutes)

thanks
i have a dell dual processor with 4gig of ram and even the gameserver isn't using that much

Status: 
Closed (fixed)