What are you inserting?...If it not a truly "plug and play" device or Hot swapable, then you need to install dirvers. After inserting you need to go to the device manager and check on the status and functionality of the device or once there, update the drivers if the device is not functioning properly. Generally, if it is not a Plug and Play device, you should be prompted to install drivers.
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.