Whats wrong with my graphics?

[ZeroFox19]

I have a Asus AMD HD Radion 7870, and a HP Pavillion 23 xi (DVI) as my first monitor. I also have an LG FLATRON E1945 ( VGA )as my second monitor. After reinstalling the drivers from the disc that came (the GPU drivers) with it i am still having issues. To start with the second monitor would flash balck and white lines for a minuite or 2 and then go back to normal. This happened fairly frequently. But now its happening on my first monitor. When i opened up GPU tweak, i minimized it and then the monitor went crazy but the second one was fine. I left it for a few minutes then rebooted my system as it had not repaired it's self. When i booted up, before starting windows my PC did some sort of check on my SSHD then fully booted as normal. But now there is an anoying flashy sort of look to the screen (Only the HP) kinda like the old CRT monitors used to look like.. Can anybody offer any help?

 

[Tradesman1]

What PSU do you have? and may want to get the latest drivers, those that came with the card are more than likely rather outdated.

 

[ZeroFox19]

What PSU do you have? and may want to get the latest drivers, those that came with the card are more than likely rather outdated.

I have a Corsair CX 750 M , I have now unplugged my second monitor and it works fine, it's only when running them both together.

 

[Tradesman1]

If you can recable, might try a different GPU output port to Monitor #2, or iff you can borrow a different PSU to try may have a problem there