Seriously, this works.........I had the same issue that you are describing.Close out catia.......lol, should be closed if it crashes.
Go into the catia settings under user profiles on the local drive.
Delete the 3 files associated with the drafting settings.
I have vista
It should correct the issue.
Here's a link to the COE Forum describing a similar problem:I reformat the machine and re-install catia but the problem still exist.Why??