Hi Thanks for BethINI for SE. I have a bug to report. I've used the program many times already, I'm pretty sure there's a bug in the VSync check button. I've used mostly High and Ultra preset (switching from one to ther other a lot to test them), also with Recommended Tweaks checked. Everytime I've changed preset, before Save&Exit, I made sure the VSync flag was off, but then, when I played the game that flag was on. The SkyrimPrefs.ini had always iPresentInterval=1.