I've often gotten round a persisntent CTD by ending a turn with the script off, switching back on next turn. I never really noticed any major problems and I played all the way to AD14!
One way to reduce battle CTD's is to leave the battle results screen on for at least 30 seconds, I give it a good minute after a crucial heroic victory, it really cuts down on CTD's (This is a RTW not an EB bug!)