My problem was video not sound.
After recommendation at the main forums, I bought a PNY Nvidia GeForce 9800GT on my way home from work today. Checked my computer power supply and discovered it was only 300W and I need at least 400W to use this card. Fortunately, I haven't opened the box yet, so I'm going to have to return it tomorrow. Maybe with my next paycheck I'll get both the video card and the power supply from Newegg. Just disappointed that I'm going to have to wait longer to get my desktop upgraded. At least I can still use my laptop for
SL.
In the meantime, if anyone has any other suggestions, please let me know. Want to make sure I get the right thing.