Hi, all! Considering a lot of what I'm reading here is well beyond me, I'm hoping I can get some accurate info regarding an audio-illiterate question. I appreciate quality sound but am not that familiar with what hw/sw is behind it. I have Altec Lansing 621 speakers (2.1). On my XP (which died) with VIA Vinyl AC'97 drivers and no enhancements, the audio quality was adequate for me but the thing I really liked was that the sound totally filled the room (house) even rattling windows. The bass output was so great that I had the subwoofer level turned all the way down. The bass sounded as though it was coming from the subwoofer. Now I have an i3 Windows 7 Home Premium x64 with Realtek HD drivers (R263 now but I've tried R259 that came preloaded and MS's generic HD). While the sound is a little cleaner and crisper, all the sound (including the bass) comes only from the satellites and literally drops less than 2 feet from the speakers. There's no bass oomph even with the subwoofer level turned all the way up. Since I don't know what was responsible on the XP for that room filling sound, I want to know (before I buy) will a sound card (I've always just used onboard) provide that or is there something else with my new system that is stopping the ability? Also, if a sound card is the answer, I would appreciate any suggestions as to the best one for my situation: 2.1 speakers want to fill room (don't game or care that much about headphone use) might optionally like to simulate surround upon occasion Thanks!