I use Ultra VNC and remote desktop, although GameEx does work fine through remote desktop when windowed. I often develop it via remote desktop in windowed mode. It may also work if your using deadzone in fullscreen. It crashes on remote desktop for two reasons: 1. If it tries to set a resolution. 2. When it tries to flip surfaces in DirectDraw (full screen mode, without deadzone). Hope this helps. Edit: In other words, set Deadzone to say 1 to get it to work, or run it windowed.