Hello, the title says it all. i use the onboard vid memory(GeForce 7100) . I have tried,
-replacing the cable
-connecting the monitor to another computer(monitor color is normal, works)
-connecting another monitor into the problem computer(monitor gets blue tint)
-osd color is normal
Now that is odd. Sounds like you ruled out the monitor being the issue. Have you tried to update your video driver? You haven't tried to OC anything have you? I know RAM can do some weird things so running memtestx86 could help to eliminate that.