Microsoft KB Archive/39592

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In QB.EXE 4.50, No Editor Color on TANDY 1000 with CGA

Article ID: 39592

Article Last Modified on 11/21/2006

This article was previously published under Q39592


Running QB.EXE Version 4.50 on an "older" TANDY 1000 with CGA graphics circuitry built-in to the mother board (CGA, 640 x 200 pixels) brings up the QuickBasic environment in black and white (monochrome).

Invoking QuickBasic with the /b, /nohi, or /h option or any combination of these options does not correct the problem. The MS-DOS command MODE CO80 also does not help.

It has been reported that QuickBasic Version 4.00b and earlier versions supported color under the QB.EXE environment on this system.


Another customer using a TANDY 1000 SX reported a similar problem. The customer worked around the problem by doing the following:

  1. Issue the following MODE command in MS-DOS:

    MODE CO80

  2. Now, when you invoke QB.EXE Version 4.50, you still get black and white, but if you select the Options... menu, you can see and select the desired colors.
  3. When you exit QuickBasic, the QB.INI file will contain the new settings. The next time you invoke QB.EXE, it will come up in color.

Additional query words: QuickBas

Keywords: KB39592