well the story goes like this, i bought a new computer 3 years ago, gtx 660, intel i5, new screen (CTX). at the begining everthing worked perfectly fine, but at some point things were a little bit off. i had crashes and such. i had the best resolution supported by this screen, but at some point it lowered to 1260X860(something like that). so i figured i just need to chaged the resolution in the settings, but i have only 2 options (this one, and 640X800), and in the past i had around 10 different options. what do i do? how can i change my resolution to what it should be? furthermore, i have another problem with this computer, whenever i turn the computer on, it shows ans starts as it should, windows sign and all, but when the computer enter to the desktop suddenly the screen goes black and i need to turn off and on to get it back. it happens sometimes when i open new programs or games as well. really annoying, really hope u guys can help me!