The same exact thing is happening to me. When I launch the game, I am able to log in, the Cryptic screen appears and the loading bar finishes, and it goes to a screen with a small white box in the top corner and nothing else. I press Alt-Tab to minimize the application, right click on the STO icon on the taskbar, and click on "GameClient", and I see the message "Unable to find required game files." Going back to the program results in a completely black screen - the mouse icon changes to the STO version and I hear the game music but am unable to click on anything at all.
I have disabled every running program on my computer other than the game client, including my antivirus software. I have restarted my computer multiple times and already uninstalled and reinstalled the game from the original setup file. The game is installed to c:\users\public\games\cryptic studios , which was the default installation directory.
Windows 7 Professional 64 Bit
4 GB RAM
AMD Athlon 64 X2 Dual-Core 4200+ 2.20 GHz
NVIDIA GeForce 6150 LE