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Related issues: http://forum.kerbalspaceprogram.com/threads/104708-Anyone-else-having-issues-that-seem-to-be-related-to-full-screen-%28shadowplay-gsynch%29 http://forum.kerbalspaceprogram.com/threads/103535-After-update-shadowplay-does-not-record-the-game-anymore-%28still-works-on-0-25%29 Since 0.90 KSP on windows does not use true (exclusive) fullscreen mode due to changes in unity. This causes screen tearing issues without aero (win7) and some loss of performance. I have found a way to enable true exclusive fullscreen mode again by modifying the file KSP_Data\mainData (KSP_x64_Data\mainData for 64 bit and KSP_x64_Data\globalgamemanagers since 1.2) . Distribution of this file is not permitted, so you have to do this modification yourself with a hex editor or use my patcher below: Back up your KSP_Data\mainData For KSP 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0: change byte at offset 109C from 1 to 0. For KSP 0.90: change byte at offset 1098 from 1 to 0. For KSP 1.1.0, 1.1.1 change byte at offset 4044 from 1 to 0. For 64bit the mainData file is in KSP_x64_Data, not KSP_Data. For KSP 1.1.2, 1.1.3 change byte at offset 3f24 from 1 to 0. For 64bit the mainData file is in KSP_x64_Data, not KSP_Data. For KSP 1.2, 1.2.1, 1.2.2 change byte at offset 10e0 from 1 to 0 in file globalgamemanagers. For 64bit the globalgamemanagers file is in KSP_x64_Data, not KSP_Data. For KSP 1.4.3, 1.4.5 change byte at offset 1180 from 1 to 0 in file globalgamemanagers. For 64bit the globalgamemanagers file is in KSP_x64_Data, not KSP_Data. I gave the offsets (address of byte to change in the file) in hexadecimal.. NOTE: only do this if you know what true/exclusive fullscreen mode is. This may cause issues when using alt-tab. Since KSP 1.1.0 I can not alt-tab back into the game on Windows 7 if it's patched to exclusive fullscreen mode. It seems alt-tab works again since 1.1.1. 1.2.2 on Win7: minor glitch in main menu: menu text becomes hidden after alt-tabbing and back. Did not try playing actual game. KSP will not run in the background after the modification. *** The patcher *** If you can not use a hex editor you can use the patcher I made. Download ksp-fullscreenfix.exe from GitHub: https://github.com/jazzkutya/ksp-fullscreenfix/releases/latest * updated for 1.4.5 * Copy ksp-fullscreenfix.exe to top folder of your KSP installation (not into GameData), and run it from there. Also see the README on GitHub: https://github.com/jazzkutya/ksp-fullscreenfix The patcher supports KSP 0.90.0, 1.0.0, 1.0.2, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2.0, 1.2.1, 1.2.2, 1.4.3, 1.4.5 LICENSES The patcher is released under the same license as perl 5 itself. Quote: https://github.com/jazzkutya/ksp-fullscreenfix/blob/master/LICENSE The patcher includes binary code from Perl 5 and Par-Packer. Par-Packer and Perl license permit this (quote from Par-Packer documentation):