C&T driver for a DUAL ERA1000 laptop (also known as 'Diablo' in Germany).
I found that setting the display to 1024x768 immediately after install resulted in a horizontally-compressed display, with mouse-clicks not being mapped properly.
HOWEVER (in desparation) I tried increasing the display to its maximum (1280x1024 - which I didn't expect to work, as 800x600 and 1024x768 didn't). This, to my wonder, not only worked correctly, but also allowed me to drop back down to 1024x768 (and also a newly available intermediate, 1024x600), with no problem. 800x600 still doesn't disply correctly.
Note that WVIDUTIL.EXE mis-identifies this chip as an 82C451, and that the DOS util says it is not C&T!!!