Various visual problems..

Hello there,

I've recently got a few problems with my PC and I am not sure what the problem may be so I was hoping to get some help..

I will list a few screenshots below so you can check out yourself.



1.

I get this problem sometimes when I open the images and I am not sure why.. Any ideas?  


2.

I get this problem when I open any game, and I have no idea why.. If I don't press to never ask me again it will keep asking every 2'..


3.
I also get a green image while trying to view some video on youtube or watch a movie (I am not sure why though and I usually get it when I keep my browser open for a long period of time, I never had such a problem before).



4.
Also noticed that IE9 sucks and lags too much atm.. -.-"




PC Spec:

Mainboard : ASRock P55M Pro
Chipset : Intel P55
Processor : Intel Core i5 750 @ 2666 MHz
Physical Memory : 12288 MB
Video Card : ATI Radeon HD 5600 Series
Hard Disk : Seagate ST3250318AS ATA Device (250GB)
Hard Disk : Seagate ST3250318AS ATA Device (250GB)
DVD-Rom Drive : QZE KL6V0XYJ8
CD-Rom Drive : DTSOFT Virtual CdRom Device
Monitor Type : Samsung SMT23A350 - 23 inches x 2
Network Card : Realtek Semiconductor RTL8139/810x Fast Ethernet Adapter
Operating System : Windows 7 Ultimate Professional (64-bit)
DirectX : Version 11.00
Windows Performance Index : 5.9 on 7.9

Thank you!