Epson Endeavor WG - Manual (Page 146)

Note
If your application program requires a monitor that
supports graphics but you have a monochrome monitor,
the results will be unpredictable.
7. If you installed a display adapter card (and did not connect it
to the feature connector on the main system board), you
must set jumper J10 to disable the built-in VGA adapter or
you will not see anything on the screen. You may also need
to change the setting of jumper J11. See “Changing the
Jumper Settings” in Chapter 2 for instructions.
8. If you still have difficulty with your monitor, run the Video
adapter diagnostic tests described in Chapter 4. If the
diagnostics program indicates an error, contact the
representative who sold you the monitor.
Diskette Problems
If you see an error message or have trouble accessing data on a
diskette, try the following steps:
1. You may have inserted the diskette upside-down or it may
not be inserted all the way. Remove the diskette from the
drive and reinsert it. If the diskette drive has a latch, be sure
to turn it down to secure the diskette in the drive. See
Chapter 1 for detailed instructions on inserting and
removing diskettes.
2. If reinserting the diskette does not solve the problem and
you have access to another diskette drive of the same type,
place the diskette in the other drive and repeat the
operation. If you can read the diskette, the trouble may be
in your diskette drive. See “Diskette Drive Problems”
below.
Troubleshooting 6-13