Not able to install WAS 6.4,Please help

Hi,

I downloaded WAS 6.4,,in the intallation process ,,

In the step --

MAX DB Database Internal Installation(Post Processing)

--system is not coming out of this process more than 1 hour(i tried many times,from start),

the installation process is not going to next step,,it is not giving any message also,,it is running hours,,

Please any body suggest ,what to do?

Best Regards,

Sudhakar