Go here:

http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=2093&lc=en&cc=ca&dlc=en&product=3644737&lang=en

Download the original drivers (bottom of page) for all the hardware. Uninstall the 
existing drivers and install the original drivers from Compaq. If you have to, do 
all of this in safe mode.
After re-installing the original drivers, if it continues to freeze, take it back 
to Best Buy anyway. Demand a new one or, if they offer to, let them try to fix it 
for you (demand free of charge).
As stated by the other person, sink your teeth into them and don't let go until you 
are satisfied.

Good luck! 

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