i have a hp pavilion slimeline s5388d, with a 32 bits windows 7. i recently got my hands on a second monitor, however my bios does not have the option of using 2 graphic card at the same time. it only allows you to choose either onboard or pci in the primary video option. i have updated to the latest bios, but still does not have the option. is the problem with my cpu as its an old system or is there another way to 'force' the bios or system to run 2 cards at the same time?