Monitor has distorted wash lines making a flickering effect. How do i fix it?

[Zifoduk]

So I have this major issue with my screen, It appears to happen out of nowhere when it just starts flickering like it is adjusting resolution or something.
It appears to only happen to the one screen, my other screen is okay.
I have attached a link to a video showing what is happening. link
Info:
Monitors - (Has a problem) Acer x223w 1680 x 1050 res [attached by DVI-D to VGA converter then VGA cable]
.................(Completely fine) Fujitsu something 1080p
Mobo - Asus a88cm - Plus
12GB Ram
GPU - Powercolor r9 270x
500w PSU
CPU - AMD Athlon 2 860k

I have tried:
1 - changing VGA Cables
2 - Buying higher quality DVI-D to VGA converter
3 - changing order of output IE(converter > cable > monitor to cable > converter > monitor)
4 - Changed computer with monitor(Monitor worked fine)
5 - Changing Ram sticks to different brand
6 - Overclocking and Underclocking CPU then GPU
7 - Complete uninstall of GPU drivers and reinstall
8 - Updating Mobo bios
9 - Reinstalling Mobo drivers on Asus website
10 - Changing PSUs
11 - Complete windows reinstall

Additional info:
I've had the monitor for many years (since 2007?? I think..)
I can't afford a new monitor
I can't afford new PC components
GPU is second hand from friend how had it for 2 years no damage done to it

any tips would be great

 

[Zifoduk]

HUGE BUMP

 

[Zifoduk]

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