My issue has been resolved.
Step by step here is what I did:
1) Open Ati Catalyst.
2) From the graphics drop down select Desktops & Display.
3) At the bottom where you see a small monitor icon, click the little triangle at the top right corner. Click on configure in this menu.
4) You should now...
ati catalyst
black bars
desktopconfiguration
display issues
drivers
dvi connection
full screen
graphics
hannspree
monitor
native resolution
radeon
resolution
scaling
screen adjustment
text blurry
troubleshooting
video problems
visual settings
windows 7
Hi
Somehow Windows 7 sleep mode has corrupted my dual display config (it has resulted in my desktops being switched around on my monitors (primary is now monitor 2 etc., monitor #1 now displays only in green etc. etc.) and all my apps are on the wrong monitor. A reboot fixes it, but Firefox...