CKEditor 4.1/SCAYT/IE10

I have CKEditor v4.1.0 installed along with SCAYT.  Everything works fine except that in IE10, SCAYT does not auto start (it works fine if you disable and reenable).  I have the following in my config.js file:

config.scayt_autoStartup = true;

Auto startup works fine in all the other browsers.  Any ideas?

Thanks!