Problem with menu osd on AOC monitor.

Hello,

I have LCD 19" AOC monitor.Model:"TFT1980PSA+"
The osd shows 10 icons(like:contrast,brightness etc.) on the screen when you press the menu button,but since i disconnected all the wires from the PC BOX(you know,the one that has the motherboard,the drivers etc.)and connected it to my bigger HD TV in order to see the movie.(since i couldn't burn the movie on the CD ,but this is another story)and reconnected it back to the monitor,two of the ten icons are not response.
I mean,when i press the manual buttons,they are being skipped.
They also looks dimmer than the other.
How can i bring back this two icons to work?
I tried to press the reset function icon,but it doesn't bring the two icons back to work.


Thanks in advance.