ORIGINALLY PUBLISHED IN LIMA NEWSLETTER NOVEMBER 1990
 
     ^^^^^^^^^^^ NEW EPROM FOR THE DIJIT AVPC  
      
     DIJIT systems has a new EPROM for its AVPC card that
solves some of the software problems AVPC users have had.
This EPROM easily fits in a socket on the AVPC card and is
available to current owners for $10 including postage
directly from DIJIT.  It is not necessary to return the old
EPROM.  I (Charles Good) can personally report that with the
new EPROM in PAGE PRO and EZ-KEYS PLUS now appear to work
OK.  The following is quoted from DIJIT's "AVPC Note #3,
Sept.  1989".  I can also state that the modes described
below DO NOT appear in the color bar when using a CorComp
disk controller.
      
     "POWER UP EPROM v2.0-- POWER UP 2 is the result of our
continuing efforts to improve the AVPC.  although the
previous version has served us well for the last two years,
we have discovered that some improvement could be made to
broaden compatibility with existing TI programs.  For
example, the P-Code Editor now works and the annoying little
screen "artifact" in TELCO has disappeared.  Moreover, other
TI programs such as COPY-C and COMPANION word processor now
appear to function satisfactorily. 
     "Basically, POWER UP 2 eliminates the interrupt
handling and disk buffering problems that existed with some
programs.  This does not mean that all TI software will now
run.  There are still some "incorrigible" programs out there
which are fundamentally incompatible with the Yamaha V9938
an very little can be done about them.  Our advice is to
find newer substitutes for the older incompatible programs
an to try new programs before you buy them. 
     "POWER UP 2 allows the AVPC to boot up in either of two
modes.  The default mode is "AVPC MODE" which appears in the
color bar of the opening screen.  This mode is required to
run advanced programs.  It will however, also run most
existing programs. 
     "The secondary mode of operation is the "TI-99/4A
MODE".  This mode is entered by holding down [CTRL]+[SHIFT]
keys during either hardware reset or software reset.  Notice
of this mode will appear in the color bar of the opening
screen.  Experimentation may be necessary to determine which
TI programs require this mode in order to run.  Beta testing
has determined that programs such as COPY-C, COMPANION, and
even PAGE PRO work better in this mode.  Caution, don't use
this mode for 80 column or advanced graphics features of the
AVPC or a lock-up will occur. 
     "Since the "TI-99/4A MODE" of POWER UP 2 serves the
same purpose as SET99/4A, discard this program.  Using
SET99/4A with POWER UP 2 will result in a lock up." 
     .PL 1