Divide by zero when opening in full sceen mode (AREV Specific)
At 18 SEP 1999 03:47:15AM Nick Winspear wrote:
Arev 3.12 on NT workstations with an NT srever, runs fine when opening as a window, but the error "divide by zero" occurs when attempting to load in full screen mode, and the program terminates. I'm not on site at the mo, but I believe all the dots had displayed.
Strangely, after opening in a window mode, the full screen can be displayed by pressing alt enter, with no problems.
Any comments or advice would be much appreciated, Many thanks in Advance
At 18 SEP 1999 05:43PM Steve Smith wrote:
The regular 25 x 80 screen starts at B800 memory segment for 4000 bytes. In window mode you have a virtual representation of this area as a bitmap in VGA RAM (wherever you adaptor can locate it, starting at A000-.
Try rebooting with Windows in VGA mode 16 colour (ie the simplest) and see if the problem prevails. If it doesn't then it's your buggy video driver. If the problem does prevail then look for a device driver or TSR located in the B800- range. There may be a BIOS shadow video RAM setting which requires disabling.
Also check your page address for expanded memory, if any. (WHO window at TCL) - there may be a conflict there. Try disabling expanded memory and see if AREV boots cleanly.
Steve
At 19 SEP 1999 12:09PM [email protected] - [url=http://www.sprezzatura.com]Sprezzatura Group[/url] wrote:
I remember having a similar problem with OS/2. Though NT 4 no longer has such a common background with OS/2 as older versions, it ended up being a video driver problem. Excluding memory areas seemed to clear it up and ended up tossing out a week of video driver bugs that almost caused a stop ship.
