Q33620: "Illegal Function Call" on WIDTH 40 with Monochrome Screen

Article: Q33620
Product(s): See article
Version(s): 4.00 4.00b 4.50
Operating System(s): MS-DOS
Keyword(s): ENDUSER | buglist4.00 buglist4.00b buglist4.50 B_BasicCom | mspl13_basic
Last Modified: 20-SEP-1990

An "Illegal function call" error message is generated when trying to
change the screen width to 40 columns using WIDTH 40 on a monochrome
screen.

Microsoft has confirmed this to be a problem in QuickBASIC versions
4.00, 4.00b, and 4.50 for MS-DOS; in Microsoft BASIC Compiler versions
6.00, 6.00b (buglist6.00, buglist6.00b) for MS-DOS and MS OS/2; and in
Microsoft BASIC Professional Development System (PDS) versions 7.00
and 7.10 (buglist7.00, buglist7.10) for MS-DOS and MS OS/2. We are
researching this problem and will post new information here as it
becomes available.

This problem does not occur in programs compiled with QuickBASIC
versions 2.00, 2.01, and 3.00.

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