White screen flashing

Basically whenever I get more then 150 latency my screen starts having epelepsy.
This occurs on all online servers I’ve been on.
I just deleted all my addons, but nothing changed.
Anything I can do about it?

Sample:

I remember that happening in old darkRP servers.

Post computer specs,

but my guess is that something on you computer has issues when trying to connect to a high ping server.

[release]Manufacturer:
Dell Inc.
Processor:
Intel® Core™2 Quad CPU Q9300 @ 3.02GHz (4 CPUs), ~3.1GHz
Memory:
4096MB RAM
Hard Drive:
1698 GB
Video Card:
ATI Radeon HD 3870 X2
Monitor:
Generisk PnP-skjerm
Sound Card:
Høyttalere (High Definition Audio-enhet)
Speakers/Headphones:
Keyboard:
USB Root Hub
Mouse:
USB Root Hub
Mouse Surface:
Operating System:
Windows Vista™ Home Premium (6.0, Build 6001) Service Pack 1 (6001.vistasp1_gdr.090302-1506)[/release]

I run Crysis smoothly on high settings, don’t see why gmod should have a problem.

Try lowering your refresh rate.

Hem… I hate asking this, but… how?

White screen flashing is usually lag.

If faze is correct, then you shouldn’t need to lower your refresh rate.

However if you must know:

Just try lowering your game settings, and resolution.

I am right, it’s usually network related.