The other file in this archive is called DRIVER.SCR.  If you are a user of
the Prodigy service on a PCjr, this file will give you the service in 16
color (Tandy 1000) mode rather than the monochrome shades of grey that
Prodigy uses with an IBM CGA (Color Graphics Adapter).  To install this
module, simply copy it onto your Prodigy Personal Disk B.  It will replace
the module that was placed there during the Prodigy installation process.
If, you ever need to go back to the original driver, just copy the file
called CGA640.SCR from your Prodigy Installation Disk 2 to your Personal
Disk B under the name DRIVER.SCR.  (That's what the original installation
process does.)

The only other thing you need to do is change the line in your CONFIG.SYS that
specifies how big your video buffer will be.  If you are using PCJRMEM.COM,
then you should use the /C switch.  If you are using JRCONFIG.SYS, use the
-v96 switch (and I suggest using the version that does NOT create a ramdisk.
The screen driver actually only needs a 32K buffer, but its position seems to
be critical.  Using 96K appears to maximize the chances of success.

This file was created by changing one byte in the Tandy screen driver
that is supplied with the Prodigy software.  Without this change, using the
module on a PCjr produces color, but the display appears to be missing
about one of every three scan lines.

Although Prodigy does not currently support the IBM PCjr, they are attempting
to locate the incompatibilities, and create a release of the software that
is compatible with the Junior. This driver was not made by Prodigy, nor do they
endorse it.

Original Author: Unknown
Updated 3-27-89 -- Antal Herz
If you have any questions about Prodigy and the PCjr, I can be reached on the
National PCjr Echo Conference as well as the following BBS.

San Francisco PCjr Users Group BBS (415) 997-4874
Paul Rau's jrBlue (209) 745-9284 (5p-8a, and weekends)
jUMPIN (408)) 394-8842