Screen keeps "blinking" [SOLVED]

[Remnant]

That sounds like perhaps a bad install. I suggest backing up your account data through something like Discovery Launchpad (Export the ADF file so you have a safe copy) and reinstall both Discovery Freelancer, and your original Freelancer copy. (Disk)

This is a mere guess, although it's worth a shot unless someone who has experienced this before jots down a post soon.