HP OmniBook 5700 Notebook PC - Manual (Page 63)

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• 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 blue On/Suspend button 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 you have problems with infrared communications
• Check that only one application is using the infrared port.
• Check that both devices are using the same protocol, such as IrDA.
Sound Problems
If sounds aren’t audible
• Check the playback or recording sound levels, channels, and muting. See "Using
Sound."
• Press FN+F9 several times to make sure the volume isn’t set too low. (If you’re
using an external keyboard, make sure you’ve enabled the external FN keys,
such as by using the
System Configuration Utility.
Display Problems
If the display works improperly
• Check whether the display resolution is set to its default setting, 800 x 600
(SVGA) or 1024 x 768 (XGA).
You can use OmniBook Tools.
• Try changing the display resolution to the standard VGA option.
If the screen is difficult to read
• Try adjusting the display controls.
• If the OmniBook is cold, allow it to warm up.
If the display scrolls when the pointer reaches the edge