It turned out that it was my old graphics card that was causing problems (atleast it seems like it) so it was replaced today by a computer expert. I said that if something needs to be replaced then it should be replaced with a same or similar in performance part.
So I got my ASUS Nvidia 9800GT 512mb DDR3 replaced with ASUS Radeon 6670 1GB GDDR5. After looking at both of the GPU boxes it definately seems like the new one is better but just to make sure I want to ask you guys if it is better then the old one and if it is a decent gpu in general. I would look this up myself but internet is offline because of the thunder and doing so with my phone is suicidal.