Points jump far left when holding alt/apple

It’s a bit random, but when I hold alt or ctrl+alt, it jumps far to the right. Not sure if this is related to a recent keyboard problem I have, http://www.glyphsapp.com/forums/index.php?action=vthread&forum=1&topic=1459

See this video, http://tinypic.com/player.php?v=fow7p&s=5#.UnO8LhbA7fU

Unhook your Wacom, restart, and see if it reoccurs.

I think this seems to help, haven’t had the chance to directly try this though

Problem still happening in 1.4.4 (578)

I tryed to reproduce it and it happened once but never after I set up for debugging. So I can’t fix it for now.