Computer is HP a6600f deskto PC with Windows Vista Home Premium 64 bit. Until a couple of weeks ago, I could connect to the internet on either launch of 32 or 64 bit. 64 bit stopped and displays the message "unable to display the page". I have done all the steps to reset, etc. that HP has recommended (page after page) to no avail. They finally said I had a dual boot system and they were unable to help. Vista was installed by HP and now Microsoft will not recognize the program ID to connect me to technical help. Computer is less than a year old. My ISP provider - Comcast has checked all their equipment - modem, cables, speed, and found no problems with their service. Does anyone else have this dual 32-64 bit problem?