1-inch black bars at top and bottom (1 Viewer)

[Gatorfreak]

TV-Server Version: 1.0.0.0 RC1
MediaPortal Version: 1.0.0.0 RC1
MediaPortal Skin: BlueTwo Wide
Windows Version: Windows XP SP3
CPU Type: Athlon X2 3800+ 2.0GHz
HDD: 160GB and 300GB
Memory: 1GB DDR2
Motherboard: Asrock 939Dual-Sata2
Video Card: ATI Radeon 9600
Video Card Driver: Omega 3.8.442
Sound Card: USB Sound Blaster Live! 24bit External
Sound Card AC3:
Sound Card Driver: Sound blaster driver
1. TV Card: Hauppause HVR-1250
1. TV Card Type: ATSC (analog disabled)
1. TV Card Driver: Hauppauge 1.25.25271.0
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec: MPV Decoder 1.0.0.3
MPEG2 Audio Codec: MPA Decoder
h.264 Video Codec:
Satelite/CableTV Provider: digital OTA
HTPC Case:
Cooling:
Power Supply:
Remote: Harmony 550 with MCE IR receiver
TV: Samsung DLP HDTV
TV - HTPC Connection: sub-D

[edit]
***Nevermind, I'm an idiot*** I mistakenly had the resolution set at 1920x1200. Durr!
[/edit]

16x9 videos used to fill my screen entirely, both in MP and WMP. I believe this problem started after I was messing with my screen resolution to try to get the Olympics to fill more of the screen since NBC doesn't have fullscreen as an option. Later, I found that Firefox can zoom. Anyway, the resolution is set back to what it used to be (1920x1080) but now WMP plays everything with an approx 1-inch black bar or margin at top and bottom on my 50" TV. It must be squishing the picture vertically since it's still filling the screen width-wise. Windows is still filling the screen so it's only the video playback that is an issue. Any ideas? I'm posting in the codecs forum since WMP does this outside of MP.

Thanks!