'Invisible mouse' made a mess of PC rebuild

April 20, 2026
Interior view of an open computer case featuring cooling fans and wiring.
Photo by Andrey Matveev on Pexels

What went wrong

You can't fix what you can't see. It has been reported that a reader, who asked to be called "Steve," ran into exactly that while rebuilding a PC for work. He and a colleague swapped in a new motherboard and decided, while they were at it, to upgrade the mouse — only to find the cursor stubbornly refusing to budge. Many plugs were yanked, reboots were performed, and a fair bit of swearing ensued. Familiar?

The reveal and the facepalm

After a slow, screw-by-screw troubleshooting marathon, the culprit turned out to be spectacularly simple: Steve had been using the brand-new mouse the whole time, while attempting to diagnose the old one — which, it has been reported, had never been connected to the new motherboard at all. The new device was allegedly hiding under the PC’s side casing amid the workspace chaos. Cue the embarrassed silence. Ouch.

The takeaway

It’s a small tale with a big lesson: clutter costs time, and assumptions breed headaches. Before you blame drivers, firmware, or gremlins in the hardware, have you checked what’s actually plugged in? A tidy bench and a quick visual check would have saved a lunch break’s worth of drama — and spared two grown adults from performing the classic IT dance of unplug-and-blame. Who, Me? wants your disasters too; misery loves company, and the rest of us love a good cautionary tale.

Sources: The Register