desktop

my desktop screen has shrunk, from total screen to about .855 - the left side is all black - this happened while I was away from the screen for about 5 minutes - no little fingers here - is there a quick fix? please - I tried changing the size with NVidia, no luck

Right click on the desktop and choose "screen resolution". Is the value next to resolution a recommended one?

Thanks HAVOC, so simple - pushed it up to max, done - only wonder now is how did it change? not too important but still curious, thank you again - hope the weather is as good as NZ