I am have frequent troubles with an Acer Aspire 5100 laptop. I am getting frequent event 51s which tell me An error was detected on device \Device\Harddisk1\D during a paging operation. I am also getting frequent BSOD. I goes blue then turns off. The blue scren doesn't stay up long enough to read. I am also getting lots of computer freezes. Can't do anything have to power down.