Web Dynpro & IE10: JavaScript Error

Hi experts,

when i start a Web Dynpro application in Internet Explorer 10 (Windows 7), i get nothing more displayed than a white site. An intent look in browser console reveals the following JavaScript error:

Unable to set property 'async' of undefined or null reference (lightspeed.js)

Unfortunately i can't find a appropriate SAP-Note to solve this problem.

Any suggestions?

Regards

Michael