I know we had an old bug report on this but I can't find it anymore... Anyways, I just uninstalled MegaGlest 3.9.0 on Windows 7 SP1 (64-bit). Before uninstalling, C:\ was clean, after uninstalling, there is a new file C:\megaglestinstallscreen.jpg present (same old problem). Looking at the NSIS uninstaller I'm not sure why this happens...