Philips 170S5FS monitor

Sounds as though one of the buttons on the front of your monitor is stuck in, try pressing each button several times to see if you can loosen it.

this is 2007nfm, my chat link went off. please post my solutions performance here. i can follow up still. otherwise, if it works, dont forget to rate it well. thank you

You will have auto adjust button in ur monitor! if you have that, try pressing that button. It will set the the monitor resolution to the optimum level.

23 Oct 2008 ... There are a few things you can do to solve the problem, ... The menu should be reset and the flashing OSD control message should disappear. ... controls locked, then it comes up again saying OSD main controls unlocked. ... I have a Philips 190S monitor. I do have a button to enter the onscreen menu. ...
filetonic.com/blog/2008/10/23/osd-main-controls-blocked/

try to fix ur power cord...

I held down the OK button for several seconds and the message vanished. On releasing the OK button, the problem reappeared. I intend to put a rubber glue (one that can be removed) which hardens on application, to hold down the OK button in the pressed position. Hope this solves the problem.

Philips say "To unlock the OSD Controls press the “MENU(OK)” button for more than 10 seconds while there is video input from PC."

Hold the "OK" button for about 20 seconds

It will initialy come up with the message "OSD Locked" and then after the 20 seconds a ne message will appear "OSD Unlocked"

try to reset it to factory setting. First press ok then down arrow 7 time then ok one time next down one time then ok.
Hope this help you.

Same problem OSD main controls locked the 5 seconds later OSD main controls unlocked then system closes down sayingproblem with atkdisp, what does all this mean? Can still operate my computer but thid damned flashing OSD message continues.