VSYNC option

[FranzShester]

Hi there! i´ve exactly the same annoying issue, i use: ppsspp v0.9.1 -499 g361a6ea on Windows 7 x64

and my experiences are:

*i have NO tearing at all if i use my integrated Intel HD graphic card.
*i have NO tearing if i use my Nvidia GT540m in Windowed mode.
*I have tearing if i use my Nvidia GT540m in Full Screen mode no matter if i activate Vsync via EMU or via Nvidia Control Panel
*if i hit the ALT key the problem is gone for a few minutes (or scenes)... i dont know what does ALT key do.. but i think right there is the solution to this problem

i hope this small report helps this project to be even better