Rasher

I just had a similar problem. Yesterday my Viewsonic VX2245wm was displaying optimally at 1680x1050 and when I came to the computer today it was at a different resolution. When I tried to manually adjust it back to 1680x1050 using Display Settings the highest resolution listed was 1600x1200, 1680x1050 wasn't even on the list. I of course 'googled' this problem to no end and did not find a lot of useful help. I tried uninstalling and reinstalling both my Graphics Card driver and Monitor Driver (had much difficulty with the Monitor Driver) along with running Windows Update etc. At one point I even looked at buying a new Monitor . I finally 're-googled' the problem and at the bottom of a long post found that someone had solved their similar problem by using a shorter monitor cord. That didn't seem to be my issue since I hadn't changed my cord ever but it did prompt me to think about unplugging and replugging both the DVI and Power Cord, with the computer ON. Well guess what, it fixed my problem! I couldn't believe it, I spent several hours messing around and all I needed to do was Hard Power Cycle my Monitor by physically unplugging and plugging, more than likely, the power cord. I should mention that I think, not 100% sure, that I Soft Power Cycled my monitor by using the Power Button on the Monitor while installing and uninstalling the drivers but that didn't help so long story short. HARD POWER CYCLE YOUR MONITOR to force it to discover or in this case rediscover it's Native Resolution