I'm having a serious problem with my new computer it slows down then locks up. I get a message from windows that the system is low on memory. I've tried evertything ran the HP Pc Doctor diagnostic, ran chkdks Had Norton 2010 to optomize still no joy. I've ran the resorce Manager it show all physical either allocated or in use. In short they all show nothing wrong with the HDD or the memory. I've closed all programs in my start menu and it still occurs