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Bugs Killed

Windows

Erratic mouse input from a wireless dongle

The computer was bouncing around on screen and clicking an email would open it instead of deleting it. Removing the mouse dongle/receiver stopped the behavior and the computer worked normally afterward.

Killed once by someone from XL.net, on 2025-10-28.

Affects

Hardware

  • wireless mouse dongle/receiver

What you see

  • Cursor or screen movement jumps around unexpectedly
  • Deleting an email opens it instead of deleting it

Why it happens

Suspected Suspected bad input or interference from the wireless mouse dongle/receiver

When it shows up

A Windows PC has erratic pointer behavior and the symptoms stop after the wireless mouse receiver is removed.

You are in this case if:

  • USB wireless mouse receiver/dongle attached to the PC
  • Erratic pointer or click behavior stops when that receiver is unplugged

1 fix below

The steps that killed it

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Someone from XL.net killed this on a Windows computer on 2025-10-28. It is written up from that one repair, so it cites no outside page.