I tried installing
kubuntu-desktop for RDP. However it changed my Unity desktop a bit and I didn't know it was loading masses of other apps.
So I removed it and it left the desktop changes including too large icons and text. When I went to change the size, my mouse "jumped" and set it to 2x size. Before I could click it and resize it smaller again, the whole display changed and I was left with only a fraction of my desktop on the two displays.
What you see in the image below is actually a screenshot of both monitors. You can see the center between the monitors where the task bars are different sizes. The Displays window actually crosses the two monitors.
As you can see, I can't reach the control to change the setting in Displays.
I guess I need to make the change in the terminal.
I tried logging out and back in, and restarting. KDE desktop and xfce both work with small text and icons. But Gnome flashback compiz and metacity, and Ubuntu all have the oversized screens.