HP Online shopping Sucks

We ordered two identical Pavillion Notebook PC's plus other equipent. We have experienced endless problems getting them to work correctly. Software incompatibilities on the new HP gear is the biggest complaint. We eventually had to return one of the Pavillions to HP - after incurring hundreds of dollars of cost paid to a computer installer. HP gave us endless run- arounds trying to avoid fixing the problems or sending replacements. Hassle after hassle!!! It continues !!!