I posted a request to correct the blue screen (occasional event). A member said more information would be helpful . My OS is Windows XP. My computer is Dell. It has an Intel Pentium D Processor 840; 4GB DDR2 SDRAM at 533 MHz; and a 256MB Nvdia GeForce 7800 GTX video card. I hope this proceeds information that can provide the necessary information.  Many thanks.