Apache language problem

Hi:
I have an ISPConfig server runnig fine, but i have a little problem displaying spanish characters like Ñ,ñ or á,é, etc.
Would you help me to fix this problem pls.

Hector

PD if u have time u can check it at:
http://elsalvadorvirtual.com/phpwq/index.php

 

Maybe this helps you: http://www.howtoforge.com/forums/showthread.php?t=1371

 

Thanks a lot Falko... i just add a "AddDefaultCharset on" on the Apache Directives, at ISPConfig and fix the problem.

Hector