Screen Freezing - Text/Chat not freezing

[parf]

Possibly unrelated but my byond tends to seize up when I collapse into unconsciousness. Not entirely sure what causes it, on my old shitty 2nd hand vista i'm fairly sure it was my ram but on my current laptop, 4gb of ram shouldn't cause this, or should it?

i feel as if this happens to everyone that gets knocked out/smoked/a pie thrown at their face for the first time. pretty sure it's related to the overlay.