Ok- I have upgraded my test server to 7.2.4 and IE10 works. Gonna upgrade my production server next.
I have just upgraded to the latest 7.2.4 and many users are complaining about the ZWC not working with IE10. I tested and found setting compatibility view mode on for the offending domains will work. Also, you can set the browser to default to IE9 by changing Developer Tools Browser Mode. What is being done to correct this?