1.  Since  PCAD  does  not support Tseng Labs ET-4000 in 800  *  600
    resolution,  you may select any one of display driver among  all
    in the beginning when installing PCAD in Hard Disk.

    For example, if you choose:

    7 - IBM Video Graphics Array (VGA)     DIBMVGA.DRV

    there will be a DIBMVGA.DRV file in sub-directory  C:\PCAD\DRV

2.  And  then copy  PP800.DRV provided in attached Utility & Driver
    diskette into sub-directory C:\PCAD\DRV. For example:

    C:>COPY A:\DRIVER\PCAD\PP800.DRV  C:\PCAD\DRV\PP800.DRV

3.  Change the contents of text file - PCADDRV.SYS in root directory
    as follows:

    replace DISPLAY C:\PCAD\DRV\DIBMVGA.DRV with
            DISPLAY C:\PCAD\DRV\PP800.DRV