Solution:

The C&T65555 VGA BIOS supports function of stretching resoultion 800X600 and 600X480 to full screen. The following steps show you how to modify a specical VGA BIOS. 1. The default settings for flat panel registers should be identical values as below diagram. User can run "Chipsvga.exe" to view and try settings for flat panel registers. 2. Please modify the value of register 40 to "3F" and value of register 48 to 17. User can find out image stretched to full screen under resoultion 800x600. 3. To modify these registers of VGA BIOS permanently, user should offer a OEM project to have this special BIOS. 4. Update system BIOS of PPC-140 by AWD55A.COM. After doing it, under graphic mode, the resoultion 800x600 will be stretched to full screen. 5. User can follow above steps to have a 640X480 full screen BIOS for PPC-140.