Solution:

This is not a bug. This is a special characteristeic of the chips 65550 and 65545. The LCD BIOS usually display simutenious on CRT and LCD. If you make resolution to 800x600 or higher, because LCD gets the priority, the display on CRT will be in virtual mode (scroll screen). There is no way to use CRT and LCD at the same time without virtual mode. To get full screen disply over 800 x 600 resolution, you need to choose LCD or CRT only BIOS to get the full screen. Example Install Win95, using standard VGA driver. Change adapter to C&T 65550 Reboot system, Win95 will display correctly in 640x480 Change resolution to 800x600 or 1024x768 and apply Desktop size changes, but can only be seen by scrolling around!!!! From experimenting, I found that by selecting CRT only in the Refresh section of Display Properties, the screen would re-size correctly, but this will not stay this way after re-booting. To solve this for our customer, I had to use the CRT only bios (5862_CRT.BIN).