Waysionnancy

Hi guys, I am a new in mp3car as a member but I concerned a long time since i found a lot of helpful information from here, now I hope some one can do me a favor, I have an issue:
I bought a 7" touch screen module with native resolution 800x480 (factory told me) but when i try to drive this module to it's native 800x480, there has black bar in both bottom and top, i try to comstom my graphic card driver and when i it's EDID in DTD calculator and it provided me with two settings;

B8 08 20 80 30 E0 2D 10 28 28 D3 00 99 56 00 00 00 19
-> 30MHZ, 800 840 880 928
This gave me a full screen but still not a sharp image, pixels are still offset.

74 0E 20 80 30 E0 2D 10 28 28 D3 00 99 56 00 00 00 18
->37MHZ, 800 840 880 928
This gave me a sharp and good quality image but the screen was completely offset to the top left corner, with black filling most of the screen.

With all 800x480 setups so far the OSD of the screen still shows that it is in 640x480...

should anybody have any suggestions?
thanks for your help in advance
Nancy

MP3Car.com