A coworker just got a new computer.
Windows xp pro service pack 1
cs 14.0.0
File associations for .eps and .ai are Illustrator cs4.
Double clicking on a file (.eps .ai) does work
Dragging a file to illustrator does work
However...
File>Open does not work
File>Place does not work
Deleting the aiprefs file has no effect.
I also copied my aiprefs file to her computer, also no good.
Also reinstalled Illustrator, no effect.
Any ideas? Maybe something to do with xp, or the lack of service pack updates?
Updated windows to service pack 3 and it seems to have fixed all.