Install gets stuck on Database Information

MODx Evolution 1.0.2
Chrome 4.0.249.78 unknown (36714)

Vista sp1

wampserver
Apache Version :
2.2.11
PHP Version :
5.2.9-2
MySQL Version :
5.1.33


http://localhost/modx-1.0.2/install/index.php?action=connection



When I click on:

Test database server connection and view collations.

nothing happens, no errors

I installed wamp over and it works now.