Apple Trackpad Causing Long Keypress Events In the last day my Apple Magic Trackpad has started to cause long keypress events when I type on the keyboard.

For example, pressing 'a' in a browser menu bar will cause the accent popup to appear. Pressing 'cmd+t' will cause multiple tabs to open, and causes the 'File' menu to noticeably flicker as if being selected.

This even happens on the login screen. It is impossible to for to log in if trackpad is enabled, since each keypress produces multiple entries in my password.

Is anyone familiar with this situation and a potential fix?
I have the same issue - still not managed to find a fix - I only noticed by chance when the keyboard issue went away if I disconnected the magic trackpad.