lenovo all in one (thinkcentre m72) screen "offset"

[sted]

ive got one in a room of ~20 of these and at the correct res (which there is a startup script to set because poor software) that has decided that it dosent want the picture to be in the right place on the screen so basically the start menu is well off the bottom of the screen. Normally you would just push the auto adjust on the monitor and that would fix it but there is no auto button. tried updating driver reboot, power off but in the res its supposed to run no dice. i can get any other res to work by fiddling with panel fit panel fit options but at native i have 0 options to do this. any ideas as im stumped