Unable to install GPU managing software in a dv6-6b40sp

Hi,
I have recently purchased a dv6-6b40sp and this has a 6770M with an Intel graphic card. There is meant to be GPU managing software, but I couldn't find it. So, I tried to unsuccessfully install it myself. I tried downloading of a forum website first, but when I performed a search of C: there was no driver there and neither was the Catalyst manager software.
I then went to the AMD site and used AMD Mobility Radeon™ Driver Verification Tool and that didn’t find the GPU either. In fact, it reported an error which was something like:
"It is not possible to download AMD Catalyst mobility due to an hardware/software incompatibility on your computer.
There is no support to the version of your graphic adapter. Contact the manufacturer of your notebook to obtain a graphic driver update."
Do you know what I can do to install it?
Any help is appreciated.
Thanks in advance.
