Problem with Windows 98 monitor

[Franc Zabkar]

On Tue, 18 Dec 2001 18:42:47 +1100, "Maslin" <djma...@ozemail.com.au>
put finger to keyboard and composed:

>I have a client who's machine I cannot fix. I have tried everything.
>I recently installed Win 98 on their machine. I cannot get their screen
>resolution to change from 640x480 or anything else apart from 16 colours.
>It is stuck there.
>
>Their monitor is a 'Viewmaster' P/N CA6515DL. I have found the drivers for
>this but it makes no difference.
>They have a PC TEL motherboard with an onboard video card. I think this is
>where the problem is. I cannot get a video adapter driver for this.

AFAIK, PCtel makes modem chipsets, not motherboards.

To identify your m/b (and video chipset), write down the alphanumeric
string that appears at the bottom of the screen during booting, eg
"51-0421-001437-00101111-071595-M571", and then search for this BIOS
ID at http://www.wimsbios.com.

Another way to identify your video chipset is to type the following in
a DOS window:

debug
-d c000:0 7fff

This dumps the contents of the VGA BIOS ROM (use the Pause and
Spacebar keys).

My ROM contains the following text string:

"SiS super VGA chip....Silicon Integrated Systems Corp....
SiS 5597"

If you would prefer to write the VGA BIOS code to a file (for easier
examination), then type the following commands in a DOS window:

debug
-n vgabios.bin
-rcx
CX 0000
:8000
-w c000:0
Writing 08000 bytes
-q

Now view the file contents as follows:

edit /r /72 vgabios.bin

To write the mainboard BIOS code to a file (mainbios.bin), type:

debug
-n mainbios.bin
-rbx
BX 0000
:1
-w f000:0
Writing 10000 bytes
-q

If you have an AMI BIOS, search the file for the string "AMIBIOS". My
file contains the following BIOS ID:

"AMIBIOS 062600 07/15/95(C)1996 American Megatrends Inc., All Rights
Reserved (C)1996 American Megatrends Inc.,
51-0421-001437-00101111-071595-M571"

-- Franc Zabkar

Please remove one 'g' from my address when replying by email.