I am having some issues with font sizes in Xubuntu.

I have an eee 900 with a 9" 1024x600 screen, I was at a friends and wanted to do a little coding so I borrowed a 21" monitor so I see more lines of code. After I changed the resolution to 1600x1200 the font sizes went to hell.

If you look at this image you will see that the font for the desktop is not the same as the panel font or other windows.

Fonts and images in Firefox and most programs are zoomed in as if I was on a 9" screen with a resolution of 1600x1200!

In the setting manager I have tried 'User Interface' and 'Windows Manager' as well as the 'QT Configuration' but none of them change the over large fonts, they will change the desktop font size, and some programs font sizes.

If I go to settings manager -> Desktop -> behavior and check 'use system font size' the desktop font also uses the awful system font size. Help!