You should install a previous version of Catalyst. Sometimes, newer drivers break device compatability. The driver from the HP site is your best bet. I see that this is a switchable graphics laptop. Install the Intel High Difinition Graphics driver as well if it is not installed.
Here is the HP driver site for your laptop.
http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?lang=en&cc=us&prodNameId=5056954&taskId=135&prodTypeId=321957&prodSeriesId=5056949&lang=en&cc=us
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Jorge loves running everyday!