I have Asus VW221D monitor, and in specs it say :
"Horizontal Frequency Bandwidth (H-Sync Rate) 30-82 Hz
Vertical Frequency Bandwidth (V-Sync Rate) 56-76 MHz"
MY OS is XP and monitor is detected only as "Plug and Play Monitor on GPU" , and when i go to change Refresh Rate if "Hide modes that this monitor canot display" box is checked i only have 60Hz. Oh and im on 1440x900 resolution.
So my question here is : Is it 60Hz because monitor is not detected/installed correctly or that is maximum refresh rate ?