I am going to report a bug in Sublime Text 2 on OSX (Version 10.8.2).
To reproduce the bug, you should enable Korean IME enabled.
System Preferences > Language & Text > Input Sources, and check Hangul > 2-Set Korean.
Left Command + Space would switch between English and Hangul.
If it doesn't work, just click the the language icon on the top.
1. Write anything down in Hangul.
2. Press enter.
3. Press backspace.
4. Then write more in Hangul.
5. You will see the viewport shakes up and down whenever you type.
I also recorded the bug. Hope it would help.
https://www.dropbox.com/s/7rp42ef1o2z4d ... %20Bug.mov
(Not to burden your server, I uploaded it on my dropbox public folder.)
I have been using Sublime Text 2 for a week, and this is a great tool.
As soon as this bug is fixed, I'll purchase it.
I discussed this problem on a Korean Mac users forum, and many replied they are also aware of the bug.
Seong Jae Lee