mysql problem

[RJ45]

Hello,
I am using IMP+mysql and after mysql is runningfor a few days I got this
error:

DB Error: connect failed
line 108 /usr/local/www/horde/lib/Prefs/sql.php

restarting mysql fixes hte problem but this happens every 2 days.
IS there anyone who got this problem too?
I have FreeBSD-4.8-STABLE.

I do not know why but same donfiguration with Linux did not gave me this
problem.
thanks

Rick