Serial mouse

The following answer is from PC Guide.

Link: http://tinyurl.com/4gwc

Explanation: The mouse's motion is not smooth and fluid the way it used to be or the way it should be. When you move the mouse it tends to jump around or stutter, stops moving unless you shake it, or moves in a jerky fashion (the pointer seems to pause between redraws on the screen for example).

Diagnosis: There are four main causes of this sort of behavior. The first is a dirty mouse, which can cause spurious behavior in a number of ways. The second is a resource conflict with another device. The third is damage to the mouse cord caused by excessive bending of the cord, especially near where it attaches to the mouse. The fourth is a problem with the mouse driver, although this is much less likely.

Recommendation: Check the mouse to make sure that it is not physically sticking. Clean the mouse.
Try using a mouse pad instead of your desk (or other surface) for rolling the mouse. In many cases the surface the mouse is on is actually the problem. Using a mouse pad allows the mouse to roll smoothly. (I have, however, seen desks that worked better without one.)
There may be a resource conflict, especially with regard to an IRQ channel. This is especially true of serial mice, because of the fact that serial COM port pairs 1 and 3, and 2 and 4, share IRQ lines. See here for more on resource conflicts regarding serial ports. Check the mouse cord to see if it is frayed or becoming loose. If you see cracks in the plastic housing of the cord, this is a sign that this may be your problem. If you have a soldering iron and patience, you can fix the problem, but replacing the mouse is normally the action of choice here. There may be a bad driver associated with this mouse. It is unlikely that this is the case (since mice are such simple affairs) but is it possible.

(There are a couple of additional links in that article.)

You should eliminate a possibly faulty mouse. I realize that it worked okay before your os install, but try another mouse anyway. It's something to eliminate (or possibly confirm as the culprit).

If your mouse still does not behave, check its calibration. Select Start | Settings | Control Panel, and open the Mouse utility. In the Mouse Properties dialog box, select the Buttons tab and move the Double-click speed slider control to set the time between clicks that you want to be recognized as a double click.

Then select the Motion tab and adjust the Pointer Speed slider control to your preference. In the Acceleration section, set the None radio button, then click on the OK button.

try the mouse on another pc. if the problem moves with the mouse, replace the mouse. if the problem does not display on another pc, and it's really really clean (rollers AND ball)i'm betting you have a resource conflict. i would try going into bios and (temporarily) disabling all the com ports EXCEPT com1. write down the address and interrupt settings there before you disable them so you can put them back as they were. and so you can let us know what the settings are... good luck.

I have had a few strange mouse problems in W95.
What has worked for me, is to go into device manager,
Remove the mouse,
Close all open Windows and re-boot.

When Windows finds the mouse, it now (for whatever reason) installs the driver correctly.

Chas

Just went thru the same thing. Installed W95 on an old box too. Turned out to be a conflict with the COM1 port.

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