Hello, I have been experiencing an ongoing issue with video stuttering when using vsync (and screen tearing when not of course) in certain games. Here are my specs: Desktop PC OS: Win 7 64-bit Intel Core i7 3770 3.4Ghz Motherboard: ASRock Z77 Extreme4 GSkill Ripjaws 16GB DDR3 RAM AMD Radeon HD 7870 2GB driver: 220.127.116.11 (CCC 13.12) 3-display setup (2 monitors 1920x1080, 1600x900, and one TV at 1360x768) HD1 – Samsung SSD 840 PRO – 120GB HD2 – OCZ Agility3 SSD – 240GB HD3 – Seagate HDD 2TB HD4 – WD HDD 500GB This issue is present throughout all games and videos to varying degrees. It becomes apparent when any smooth movement is supposed to occur such as camera panning or forward movement (in fps games for example). In certain games it is barely noticeable such as Borderlands 2, however games Trine or Dead Island are virtually unplayable due to the amount of stutter when moving. In other games I experience tearing unless forcing vsync with triple buffering with D3D overrider. I have tried changing the vsync settings in the individual games as well with no change. I have tried a number of solutions recommended from various boards such as reinstalling/installing older drivers. I am using an ATI radeon HD 7870 and have downloaded and removed/installed just about every driver version I could get my hands on. I have also been lucky enough to have access to a great deal of spare parts. As such I have swapped the following components with known-good ones with no result: - Power supply - CPU - Motherboard - Hard drive (SSD) - full reformat as well The previous graphics card, a 6870, also experienced the exact same problems, initially I replaced this card in an attempt to solve the stutter issue but it remained exactly the same. I have run memtest and had no errors. I have run certain problem games off of a different hard drive and on different monitors of my setup and produced the same result. Computer has been fully scanned/cleaned of malware etc. Running Malwarebytes, CCleaner, and MSE. I’m at the end of my rope here. Not sure what else to do. Seems like this is a tricky issue, none of the solutions I have found while searching has worked but I’m hoping I missed something crucial. Any help/suggestions would be appreciated. If you need any more information please let me know. Thanks for your time.