Not allowind desired resolution

[KragNaroK]

I have a 27 inch widescreen monitor which the native resolution is 1360x768.
i have dual 8600gt and run them in sli. no matter what i have tried it will
not allow me to go to a higher resolution than 1200x768, which is really
starting to bother me. i would also like to be able to run games at
1680x1050, but because windows isnt letting me, the game will not let me.
amd yes i have unchecked "hide modes this monitor canot display"

 

[Wandering]

Let's see. You are selecting a value your monitor cannot display, and you
are wondering why it won't display it?

 

[philo]

I have a 27 inch widescreen monitor which the native resolution is 1360x768.
i have dual 8600gt and run them in sli. no matter what i have tried it will
not allow me to go to a higher resolution than 1200x768, which is really
starting to bother me. i would also like to be able to run games at
1680x1050, but because windows isnt letting me, the game will not let me.
amd yes i have unchecked "hide modes this monitor canot display"

You cannot display beyond the capabilities of your monitor...
but you should be able to get to 1360 x 768.

Did you install the latest video drivers from the mfg's website?
If not...get them.
If you use Windows built-in drivers it could explain why you do not get
all the resolution you should be able to