Troubleshooting guide for Windows
Problems before entering the game
Graphics card drivers
Download the latest driver from the graphics card manufacturer's web site and install it.
NVIDIA: http://www.nvidia.com/content/drivers/drivers.asp
AMD/ATI: http://support.amd.com/us/gpudownload/Pages/index.aspx
Intel: http://www.intel.com/p/en_UK/support/graphics/
Make sure Windows is using the correct driver. Windows has its own set of drivers which are sometimes set as factory defaults, even when the manufacturer's drivers are available. To ensure you are using the correct driver for your graphics card, see:
http://windows.microsoft.com/en-US/windows-vista/Video-cards-frequently-asked-questions
http://support.microsoft.com/kb/200435
Black or grey screens
This suggests your graphics card is not adequate for running PlaneShift.
Another symptom of insufficient Graphics Processing Unit is when creating a character for the first time; the application will apparently just exit.