MySql will not start. Another Mysql running

[Tarncroft]

I have just downloaded and installed Xampp on Mac-Mini running 10.5.8.
Apache Server starts but when I try to start MySql I get the following message
Another mysql server is already running!
XAMPP's MySQL can not start while another mysql server is running.
Please turn it off and try again.

I have tried Pabs solution but it has no affect

In the activity monitor it shows 'mysqld' owned by '_mysql' running

Does anyone have the solution to this problem?

[MegaChriz]

It's possible there is another webserver running. Mac OS X comes with a built-in webserver.

Read my post here:
viewtopic.php?f=29&t=33072#p164978