Using MS CRM 2011(rollup 12) I found out that crmForm.all.name.DataValue does not work anymore in IE 10. After setting compatibility mode for the site the DataValue property worked again. Keep this in mind if you haven’t upgraded your javascript code to use the new api and you want to use IE 10.

EDIT:
Oguz Kaan Akyalçın pointed out the HTC option, apparently turning it off and on again and then close IE 10 does the trick as well.

Posted: February 27th, 2013 under MS CRM 2011.
Comments: 2

When creating complicated JavaScript for MS CRM it can be easier to place your code in an external JavaScript file while developing. This content of this file will be loaded and executed in the onload event of the form.
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Posted: July 15th, 2009 under MS CRM 4.0.
Comments: 6