Well in that case there's 2 things it could be, but most likely it's not your computer at all, but someone's been fiddling with the buttons on the monitor and moved "the screen" across. Unfortunately how you correct this varies from monitor to monitor and may take a bit of trial and error.
I would try this first.
I've tried clicking and dragging and won't work.
Buttons on monitor are: MENU DOWN UP AUTO POWER
Any suggestions for using any of these?
WAC - have Internet Explorer and yes to your other part of question.
WAC - how do I check screen resolutions??
Juni