Jumping cursor/screen while typing

This bug has now bugged me enough times that I actually will report it. Previously I've restarted Webstorm to get it working again. Typing a single char will make screen jump in an untolerable way. This issue actually makes me more demoralized than debugging IE7 issues through a VM. Please help.

video: http://www.bryntum.com/temp/jumping.mp4

WebStorm 10.0.1
OS: Mac

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