Chosen Solution

Can’t You say me how I can correct display geometry on my i5 2010 iMac? … Thank You …

Go under the Apple in the upper left hand corner to System Preferences: Hardware: Displays and select your resolution.

No it’s not resolution it’s geometry …

Screen was rotated on 1-2 degrees CW … It’s haven’t possibility to configure geometry of screen on iMac (as I know now) … So I return this iMac, and waiting new … So this trouble is not relevant now … Thanks You all for trying to help ..