Thanks for the (quick) help.
Actually, I was reinserting into the same USB port, which is why I thought this was odd.
I took the plunge, as nateb suggested, and did the sound check. It was a little disconcerting because I was afraid that I was somehow losing my profile, but after the sound check, I just started dictating and am clearly using my same user profile. I just needed someone to give me the courage to go ahead and do that. Thanks.