Member Avatar for stu aull

OK so I am "trying" to program my mighty mouse buttons - I accidently assign the MAIN button to "open Safari" - so NOW I can't select ANYTHING because the $%^& button only opens (and opens...and opens...) Safari
Finally had to plug in original idiot one-button mca mouse to get this far. SO: Q-
how do I RESET the mighty mouse??
Many thanks from Alaska
Stu Aull
iMac G5
Tiger 10.4.2

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  • Latest Post Latest Post by mesamb1

Dani AI

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Short version: this is almost certainly a user‑preference problem (not a hardware fault) and can be fixed without reinstalling the OS. already did the right first thing by getting temporary control with an ordinary mouse, and offered an accessibility workaround. The steps below focus on safe, reversible ways to restore the default Mighty Mouse mapping.

Try these in order:

  • Quick test: make a new user (System Preferences -> Accounts -> +) and log into it. If the Mighty Mouse behaves normally there, the issue is stored in the original account’s preferences and can be reset without touching the system.
  • Reset per‑user mouse prefs: with a working mouse, quit System Preferences, open Finder -> Go -> Go to Folder -> ~/Library/Preferences, and move any files whose names include “mouse” or “AppleHID” to the Desktop (back them up — do not delete). Log out and back in (or reboot). macOS will recreate defaults.
  • If a new user also shows the problem, boot into Safe Mode (restart while holding Shift) and test the Mighty Mouse there — Safe Mode loads only core Apple drivers and can reveal driver conflicts. Also run Software Update to install any Apple mouse/support updates for Tiger.

If none of the above helps, try an NVRAM/PRAM reset (restart and hold Command-Option-P-R until the second chime). If problems persist after that, it’s most likely a driver/firmware or hardware issue and a visit to Apple or a reinstall of the relevant Apple updates is the next step. Always keep backups before removing preference files.

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Member Avatar for John A

After thinking about this for a while, why don't you turn on Mouse Keys? Plug in a mouse that still works, and enable Mouse Keys. Then, plug in the Mighty Mouse that doesn't work, and then use Mouse Keys to reprogram the mouse. Here is a screen shot of the System Preferences (Accessablity section):

Picture_1.png 32.08 KB
Member Avatar for mesamb1

I am sorry, i dont intend to be mean. but your problem is highly amusing

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