no myql conection through tomcat

mysql & tomat

[ronsf1972]

When run a stand-alone app I can connect to MySQL. However when I try and connect through a webapp I get an exception:

Driver info:
[used in app]
com.mysql.jdbc.Driver

[located in WEB-INF\lib]
version msql-connector-java-3.1.7-bin.jar

Exception thrown:
java.sql.SQLException: No suitable driver

platform WinXP

I've tred putting the .jar in jre/lib/ext as well, but that didn't solve the problem...

Any help is appreciated