General Troubleshooting; For Help With This Problem; Your Computer Fails To Boot Properly And Displays A "Missing; Hard Drive" Or "Missing Floppy Drive" Error Message - Zoom ComStar XT SVD Owner's Manual

For help with this problem...

Data is missing.
Data appears garbled on the screen.
The modem works fine when you are not using data
compression, but the compression features are inoperative.
You can't talk with the person at the other end while transferring
files
The quality of the voice messages needs to be improved.
You increased the number of bits per sample in your voice
software, and you are losing some voice data.
Your computer response time slows down when an incoming
voice message is being recorded.
The maximum volume of your speaker is too low.

General Troubleshooting

Your computer fails to boot properly and displays a "missing
hard drive" or "missing floppy drive" error message.
Some computers boot too quickly for the Plug and Play
information to get from the modem's firmware (embedded
software) to its special PnP chip. There are two things you should
do: first, don't let your computer skip the memory test at bootup
(most computers let you press a key to skip the test); second,
ask your computer's manufacturer for the latest version of the
BIOS.

You have two ComStar SVDs installed and neither of them

works.
It is currently not possible to run two or more ComStar SVDs in a
non-Plug and Play computer.

The software can't find the modem and the modem does not

respond to AT commands. (The following comments apply to
many other problems, as well.)
The most common error with modems is that the communications
software is not configured for the same COM port as the modem.
Check which COM port the modem is using. Make sure that the
Chapter 3 Problems and Solutions
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