There is one more strange thing about IE10 that I should mention. IE9 often maxes out one CPU core when a Lucidchart diagram is open, even when the user is comp

There is one more strange thing about IE10 that I should mention. IE9 often maxes out one CPU core when a Lucidchart diagram is open, even when the user is completely idle. IE10 is somewhat better, but on our test machine it still used about 50% of one core when the user is idle. No other browser has any detectable CPU load under the same conditions. Has anyone else seen behavior similar to this in their own javascripting (is that even a word?)? I hadn't been paying special attention to IE's CPU usage but I'd like to think I would have noticed this in any of my own stuff when I was doing browser compatibility testing.