Your graphics chip is on the low end of the performance scale, as the 6370 is only really an "entry" level card. On top of that as you have a laptop its likely that your graphics drivers are outdated and causing the issue. I sugest you first check your laptop makers website and see if they have updated graphics drivers for your specific laptop model.
If that is a bust, try this;
http://support.amd.com/us/gpudownload/windows/Pages/radeonmob_win7-64.aspx
If this tool says your graphics card is compatible with AMD released drivers then use this;
http://support.amd.com/us/gpudownload/windows/Pages/auto_detect.aspx
This will automatically search for and download the most recent and compatible driver for you graphics card.