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Communications problems – HP OmniBook 800 Notebook PC User Manual

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To turn on DriveSpace for only removable drives: Exit Windows, run dscopy,
then press CTRL+ALT+DEL.

To turn off DriveSpace: Exit Windows, run dsdel, then press CTRL+ALT+DEL.

Communications Problems

If you have problems with serial communications

If you cannot make a serial connection at high speed (115K baud), try changing
the Power Management setting in the

System Configuration Utility

to “Moderate”

(from “Maximum”).

If you have problems with infrared communications

Move the devices to within about 1/2 meter (1.5 feet).

Check that only one application is using the infrared port.

Check that both devices are using the same protocol, such as IrDA.

Make sure you’re using the COM4 port. (For printing, use the LPT3 port instead.)

Start Infrared Monitor before you connect. In Control Panel, double-click
Infrared.

For an MS-DOS program using an infrared connection, run the program in an
MS-DOS Prompt window instead of in MS-DOS mode.

Try restarting Windows.

If an application can’t access a serial port

Check that the COM name you’re using is actually assigned to the port you’re
using.

If an application doesn’t support the COM port number assigned, change the port
number in the

System Configuration Utility.

Check whether another application is preventing access to the port, even if it’s
not actively using it.

Check in the communications application that you haven’t changed the address
and interrupt for the OmniBook port.

If the OmniBook stops responding after accessing a serial port

If the OmniBook stops working, try pressing the On/Off key to suspend and turn
on the OmniBook.

Reboot

the OmniBook.

If an I/O card stops communicating properly

It may have been reset if the OmniBook suspended or turned off. Exit and
restart the application, and plug in the ac adapter, if possible.

If a parallel device doesn’t work correctly