I am having the same problem!!
Install / uninstall. Did it - TWICE. Deleted .dat file. Yes did that. I get NOTHING - no response, no PowerCMS screen, nothing. This product does not appear to work. I have been refused a refund, because I am out of my 30 day period (bought it for client work, just got done)...so now what? Will SOMEONE PLEASE help me? I can read directions, I have followed the directions, and nothing is working as promised!!!!