[Help]mysql won't start

[kenmax]

I'm using XAMPP 1.7 with Apache and mysql service. They both work fine until I installed Ms SQL Server 2005.
The Ms SQL Server 2005 works fine now, but mysql doesn't work. I can even start it..

I've already Stop all SQL 2005 services and trying to start the mysql. But it still doesn't work.

When I try to start mysql, a message like this image always appearing..




What should I do now? If I try to reinstall the XAMPP, will it cause my SQL Server 2005 crashing?

I've already check the port.. And it's free.. So I think it's not a port problem..