IntelliJ IDEA: More keyboard shortcuts that don't work in Xubuntu 12.04

Just discovered a few more IntelliJ IDEA keyboard shortcuts that don't
work in Xubuntu 12.04 because of conflicts with OS default keyboard
mappings.

To fix these, go into:

Settings -> Settings Manager -> Window Manager -> Keyboard (tab)

Then remove the mappings for these key combinations:

Alt-F8 - Evaluate Expression

Ctrl-F1 to Ctrl-F12 - these are mainly for moving to different
Workspace. See the image for the replacement mapping I set - I
replaced them with Ctrl-Shift-Windows-Alt-F1-F4. I've left mappings
for Workspace 5-12 as empty because I dont' think I'll need more than
4 workspaces.

Alt-Insert - Generate
Alt-Delete - Safe Delete