Enabling Radeon 7670m on Sony Vaio

Hey everyone,

I just recently got this Vaio laptop model SVE14A27CXH which features a 2GB Radeon video card as well as onboard graphics. The problem is that games don't seem to use the Radeon card, every program uses the onboard. I've tried switching programs to high performance, changing power settings etc. and nothing seems to work. I've also read that this may be because Sony needs to release a new driver for switchable graphics on Windows 8.

I've contacted Sony and they basically told me to make sure I have all the updates, which I do. Any thoughts on the subject would be greatly appreciated.

More system info:
Intel i7
8GB RAM
1TB HDD
Windows 8