Hi I have an annoying problem with me computer for a couple of months now
when using the monitors brightness menu appears and increases to maximum followed by the contrast even though I am not pressing any of the buttons this seems to be completely random. I have managed to lock the menu but I still get the “osd locked” text appearing at random.
Additional info:
i can go weeks without this issue then it suddernly sparks up again
I am out of ideas
any help would be greatly appreciated 

when using the monitors brightness menu appears and increases to maximum followed by the contrast even though I am not pressing any of the buttons this seems to be completely random. I have managed to lock the menu but I still get the “osd locked” text appearing at random.
Additional info:
- None of the buttons on the front of the monitor are stuck and work when pressed
- I have tried the monitor on a old computer for several days with no problems
- I have changed the vga cable and dvi adapter
- I have updated the graphic card (Radeon hd 5770 @ 44c when idle) drivers
- Curiously this does not happen when playing games
- I have reset all the image settings to default in ccc
- this problem also happens in ubuntu
i can go weeks without this issue then it suddernly sparks up again
I am out of ideas
any help would be greatly appreciated 
My Computer
At a glance
Windows 7 Ultimate x64Amd Phenom ii x4 8404gb CrucialXFX RADEON HD5770 SINGLE SLOT
- Computer Manufacturer/Model Number
- Brand less
- OS
- Windows 7 Ultimate x64
- CPU
- Amd Phenom ii x4 840
- Motherboard
- ASUS M4N68T-M LE
- Memory
- 4gb Crucial
- Graphics Card(s)
- XFX RADEON HD5770 SINGLE SLOT
- Sound Card
- Onboard
- Monitor(s) Displays
- Optiquest q19wb
- Screen Resolution
- 1400 x 900
- Hard Drives
- Western Digital 500gb &
Hitachi Deskstar 1tb
- PSU
- Alpine 700w
- Case
- GRIFFIN IN-WIN MIDI TOWER
- Cooling
- Processor stock 12cm aksa fan at front, 8cm side, 2 8cm back