I installed a Microsoft MN-730 wireless network card in my computer. The OS is win98se. It installed cleanily and ran fine for several days. I went out of town for 2 days and I turned on the computer back on and now the connection will not work. It says the PCI network controller drivers are missing and can't find them. The PCI slots will not work and locate the network card. How do I get them back and where did they go? And how can I keep them from didappearing again? Any help would be greatly appreaciated.