Well, two other users with the same problem did not find a solution. As jens said it might have to do with some power options and stuff like that. The truth is that AMD does not provide an option to select your main gpu. In nvidia this is very fast and easy. From a quick google search your laptop must be using Windows 7 x64 so try these two:
Newest Intel Driver(from Intel, may not work with HP though - if it installs it will make you able to play the game but in no good graphics and also not with the AMD card of course):
http://downloadcenter.intel.com/Detail_D...pe=Drivers
Newest AMD Driver(from AMD, may not work with HP though - I don't think it will make a difference but I hope so):
http://support.amd.com/us/gpudownload/wi...n7-64.aspx
If these drivers don't install because of HP, you should check the HP site for new drivers.