We have had real difficulties with LCD crashing whenever we make changes to the script editor window in 8.1.
We have three laptops and the problem occurs on two of them. We reinstalled the software but the same thing happens so it looks as though it must be something to do with the form itself.
My LCD tended to crash every now and then too. (And I am not the only one.)
Have you already tried to do it with the CD inside your laptop? (Don't remove it)
Might sound stupid but here it works.