Glitch- 1px anomaly

[ukrainecmk]

Hello.
At first - thank you for your solution, it is really cool.
But I have a problem. It create 1px glitch line on animating of corner drag. You can check it on screenshots:
http://screencast.com/t/TVnKrF4ptKJQ
http://screencast.com/t/M7nbriwchH
I reproduced this issue on your example http://www.turnjs.com/#samples/magazine2, just move mouse over the corner - and you will see that 1 line on 1px appear near it, same thing - when you will drag the page. Please tell me - how this can be resolved?