Buzzing sound through speakers when playing games ( Grounding Issue )

[jackisbadatbuilding]

Hello, i was wondering if anyone could help me work out what the hell is going on with my pc and speakers.
There is a loud buzzing noise when i play games which comes through my speakers. This only happens when my PC is doing something which requires a lot of resource like playing games.
I have flipped my amp power cable to remove the ground pin from being connected as suggested by someone on the internet. However i have really bad knowledge of electrics and don't know if this is going to kill me by horrible electrocution if i touch the pin by accident with my feet.

What is the safer way to fix this ?
Attached is a picture of the power connections, the far left on the multi-adapter is the power cable connecting to the amp the two other plugs are monitors and the plug connected to the socket is the PC power

http://i68.tinypic.com/11hzalz.jpg

 

[James Mason]

get a plugin noise filter, and plug the computer or speakers into it: http://www.amazon.com/X10-XPPF-Plug-Noise-Filter/dp/B0002M5OJI

But that's only for an x10 system, so yeah.... you'd need to find a general purpose one. Or maybe get a powersupply that had one built in.

 

[jackisbadatbuilding]

Ah thank you, do you know if I'm at risk of death of I touch that pin?