When installing a Sprint AirCard 580 in a laptop with BlueTooth enabled devices, you may run into "No Device" errors in the Sprint application.
It seems the Sprint AirCard likes to use com port 7 (COM7). Your Toshiba based implementation of BlueTooth appear to use as many as 12 com ports above 3. This means it likes to assume control of 7, what your AirCard is trying to use.
I found disabling the BlueTooth COM7 in device manager allows the AirCard to be recognized and function, and doesn't kill the BlueTooth mouse my executive marketing guy likes.