installed Virtualmin Pro on CentOS...can't login to virtualmin

Hello,

I installed Virtualmin Pro on CentOS, but I am unable to login to Virtualmin. The install went smoothly with 0 errors.

Any ideas? (I've already tried uninstalling and reinstalling. I am using Slicehost. I had originally installed it on Ubuntu, but I "rebuilt" my Slice and now would like to run it on CentOS.)

Thanks.

SAM