Originally Posted by
Tgo01
A modern computer should have no problem running 5 instances of the game and Lich.
Although you might want to try WizardFE. SF has some serious memory leak issues which if you're running one SF might not be a big deal, but 5 SFs might cause problems after a while. WizardFE doesn't have a memory leak and uses much less memory in general. I have 11 instances of WizardFE running and each only uses 4.1MB of RAM, which is practically nothing.
If nothing else you'll be able to eliminate SF as being the issue if your computer still crashes, or confirm SF was the issue if your computer no longer crashes.