The "problem" is usually the monitor.. I have a FX5200 connected to a 19 inch brandless monitor that's running 1600x1200@80Hz.

If you really want something more clear/stable to the eyes invest in an LCD screen. My other computer uses a Dell FP2001, that's running 1600x1200@60Hz. Eventhough the refresh rate is lower it's much more stable to the eyes.