I installed my mouse as a 3-button MS-mouse, and assigned it to COM1. Now it does NOT work, I guess I should've assigned it to COM2 right? Anyway, before my mouse worked fine as a 2-button mouse. I need my mouse back. Anyone help me please , thanks

Hit Alt-F1 to open the Kmenu and navigate using the arrow keys to the peripheral, or mouse configuration and try to undo what you did. I assume you changed the settings through the GUI and did not directly edit XF86Config file. Can't be really specific here because I don't know which you are using, Redhat or Slack.

Thanks for the reply, I am using Slack 9.1, and I did not change it via GUI, I setup the mouse after I finish installing Linux.

Geez, I am not familiar with Slack. Here is what I have in my /etc/X11/XF86Config file for the mouse. I am using a PS/2 three button intellimouse:

Section "InputDevice"
Driver "mouse"
Identifier "Mouse[1]"
Option "Buttons" "5"
Option "Device" "/dev/mouse"
Option "Name" "Autodetection"
Option "Protocol" "imps/2"
Option "Vendor" "Sysp"
Option "ZAxisMapping" "4 5"
EndSection

Don't know if you can go into your XF86Config file and see what it looks like. Hope this helps.

Yea i'm having the same problem. I've been trying to install EvilEntity's UndeadLinux and my mouse just plain wouldnt work as a USB. So I put on a PS2 adapter that came with my mouse and it sorta works (it stays in the top left of my screen and it dosent want to move out of the corner). What should i do
My mouse is a Microsoft Intellimouse USB but has a PS2 adapter.

You have two options if the problem is what I think it is:
recommended:

rm /dev/mouse
ls -s /dev/ttyS1 /dev/mouse

this will make mouse point to the COM2 (ttyS0 is COM1)
that should get it to move while still using slack standard config
in case u are on graphical login, try ctrl alt f6 to get a console

the other way:

modify your XF86Config and replace /dev/mouse with /dev/ttyS1

for COLDSOULFREAK:

I think that should be just a matter of changing your XF86Config,

try psaux for device
and imps/2 and ps/2 for the protocol

good luck with it