Resolution and Aspectratio problem

[RootMaster]

Hi there,

i have a little problem. If i try to set the native resolution of my monitor (2560x1440) the aspectratio is set to 4:3. The wrong autodetection is not really a problem but even if i set it to 16:9 manually it switches back to 4:3 when i apply the settings. Any way to fix this?

[SASBU]

Does this happen on lower resolutions?

[RootMaster]

No it doesn't, 1920x1080 works just fine.

[Hrazda_CZE]

Same problem...