Thank you all for your help. I used the standard "OUTTEXT" function. I think that part of the font table or video buffer may be overwritten by some other software. I tried to reserve the video memory start at $A000 in the CMOS setup but in some laptops, I don't see the Chip Set page...
I wrote a DOS program that displays messages in graphics mode. The program works well in most computers. But recently some people complaint that when run the program in a new laptop with Windows XP or 2000 and ATI video card, the alphabet characters appear OK on the screen but the digits and...
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