Hi Gilles,
When we looked into your screenshot, the browser was running in IE7 mode and this is an known issue in IE7. So, this is not an IE9 issue. To change the browser mode please do the following steps.
Steps to change the browser mode:
1. Press F12 in browser window.
2. A small developer tool will be displayed in that you can see the browser mode option in which you can change the versions of the browser.
We will fix this issue in the upcoming release. If you want the patch for this issue, Please create a DT incident for your query so that we can update the patch for this feature.
You can create the DT incident from the following link.
http://www.syncfusion.com/account/dashboardIn the interests of maintaining confidentiality, we have a policy of not sharing patches or otherwise proprietary customer specific information in the public Forum.
Please let me know your concerns.
Regards,
Vignesh