Video/Timeshift stop causes UI shift (1 Viewer)

[Vaaish]

MediaPortal Version: 2.2.0 SVN123006
MediaPortal Skin: Blue 2
Windows Version: WinXP SP2
CPU Type: AMD Athlon XP 2600+ @ 2.1ghz
HDD: 40gb
Memory: 1gb PC2700
Motherboard:
Motherboard Chipset: Nvidia Nforce 2
Motherboard Bios:
Video Card: Geforce 6200 Gigabyte
Video Card Driver: 93.71
Sound Card:
Sound Card AC3:
Sound Card Driver: -
1. TV Card: Hauppauge PVR 150
1. TV Card Type: analog
1. TV Card Driver:
MPEG2 Video Codec: Nvidia Purevideo 1.02
MPEG2 Audio Codec: Nvidia Purevideo Audio
Satelite/CableTV Provider: Charter
HTPC Case: Silverston LC11m
Cooling: Zalman
Power Supply: Default
Remote: iMon PAD
TV: Samsung
TV - HTPC Connection: DVI

I haven't attached a log because I'm not sure it will help with this problem.
problem:
When using DX Exclusive mode, stopping video/timeshift TV causes UI to shift.
steps:
1.enable DX Exclusive mode.
2. lauch MP
3. Start myTV
4. Enable Timeshift
5. Exit to main menu
6. stop TV video

notes:
if you substitute video for TV the same thing happens after following the remaining steps.

UI calibration displays different resolutions before starting video and after.

the UI jmp makes it hard to properly calibrate the UI to fit the screen since it changes.