Have had same error on two different systems "Input Not Supported" Shows up
as a floating error message that bounces around the screen.
First system it appeared on the monitor went out and replaced with a new
monitor. Did not find a resolve as the system was mission critical and
replaced with a different system (system now on my bench to be worked on).
Second system, OS crashed on user, intalled new OS from Ghost image (keep
image for all systems), booted up after new image installation and "Input Not
Supported" floating across the screen. With this system, looked at
configurations on another system (same computer and same monitor) and all the
same.
Something is not set right some place - can anyone help? This one has me
stumped.

Shadowbrooke wrote:
> Have had same error on two different systems "Input Not Supported" Shows up
> as a floating error message that bounces around the screen.
> First system it appeared on the monitor went out and replaced with a new
> monitor. Did not find a resolve as the system was mission critical and
> replaced with a different system (system now on my bench to be worked on).
> Second system, OS crashed on user, intalled new OS from Ghost image (keep
> image for all systems), booted up after new image installation and "Input Not
> Supported" floating across the screen. With this system, looked at
> configurations on another system (same computer and same monitor) and all the
> same.
> Something is not set right some place - can anyone help? This one has me
> stumped.

Sounds like the system is running at a vertical refresh rate that is too
high for the monitor to handle. Many video cards have independent
vertical refresh rate settings for each video resolution. Monitors tend
to have more tolerance for higher rates at low resolutions like 800X600.
Sometimes the refresh rate for higher resolutions has to be reduced to
70 or even 60 times per second. If the monitor cannot handle the high
rate at that resolution, an error message will be generated IN THE
MONITOR. You may have to boot the OS in "Safe Mode" to operate the
monitor while you adjust the computer's vertical refresh rate. Safe Mode
can normally be reached by holding the F8 key while booting the OS. Safe
mode normally operates the computer with a conservative resolution and
refresh rate that all monitors should be able to handle.

Exact procedures for changeing vertical refresh rate vary, as that
function is provided by software produced by the video accelerator
manufacturer. The functions can normally be reached through right
clicking the desktop, clicking the "Properties" item on the context
menu, click the "Settings" tab and the "Advanced" button in the lower
right corner of the window. Look for a setting for the video
accellerator's vertical or "screen" refresh rate and a list of various
screen resolutions. If you don't have a printed manual for your video
accelerator you MAY be able to read an onscreen manual in safe mode or
read the manual from the video accelerator installation CD on another
computer.