Was your STB Video card in a PCI Bus Mastering slot? This could be why the
video card worked in another computer but not in yours.  Below is
information from STB concerning the STB Velocity 128. Maybe something
applies to your situation.

A The STB VELOCITY128 PCI video adapter has the nVidia RIVA-128 chipset that
(unlike other STB products) requires an unshared IRQ be assigned to the
video bus by the CMOS setup for the motherboard BIOS. The motherboard
chipset must be able to handle bus mastering on that slot as well. There can
be no active on-board video with the motherboard or any other CMOS setting
that would conflict with the industry standard area of memory for VGA:
A000-C7FF. Check with the PC manufacturer regarding changing settings on
their product. Set Windows to VGA and remove all non-Microsoft video display
drivers and utilities before installing the STB video display drivers for
this product to prevent a corrupt install or potential conflicts later on.

Change the display driver to standard VGA, by going through Display
Properties, then Settings, then click on Change Display Type or Advanced
Properties and click on the Change button by the display adapter. Click on
Show all Devices and chose the Standard Display Types manufacturer with the
Standard Display Adapter VGA model. Say Yes to re-boot the system.
After the system has re-booted using the standard VGA display drivers, you
may search for and delete STB*.* files (Please note, this step is optional).
Decompress the two zip files using WinZip or PKUNZIP.
Install the updated STB driver, by going through Display Properties, then
Settings, then click on Change Display Type OR Advanced Properties and click
on the Change button by the display adapter. Then click on Have Disk and
point to the folder containing the STB display drivers, in this example,
Part1. Say Yes to re-boot your system.
To install the updated STB VISION 98, just go to the folder Part2, and run
SETUP.EXE. This will install STB VISION 98. The updated STB VISION 98 will
not install unless you have the STB display drivers installed first,
preferably the updated STB display drivers.



Hardware solutions: Another adapter may be loading BIOS or driver
information in the A000 through C7FF memory block needed by your STB video
adapter. Check to make sure devices such as printer drivers, sound cards,
CD-ROMs, tape backup, SCSI controllers or scanners are not utilizing the
A000 through C7FF memory space.

Firmware solutions: In CMOS setup, take time to disable any video cache,
video shadow, byte-merge, palette snoop and decouple- or hidden-refresh
settings. If PCI bus bursting is assigned to the video bus, use CMOS setup
to disable this as well.

Mary Wolden
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