Good evening, I've been trying to upgrade my ati radeo mobility 9200 gfx card on my PCG-K115S vaio, but I just cant do it... I've dl'ed loads of different drivers, but non of em want to install 
I cant find anything on the site where I'm supposed to upgrade my hardware :s
I would much extreemly happy if someone could help me with this problem.
Ty all in advance
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