Issue with QM 4.0.3 and IE9 does not allow me tye the steps

Hello,

I want to upgrade from version 4 to 4.0.3, but testing the last version, and when I'm creating a new Test Scrip, and when I do click in Add step, I start to type the description and when I do click in thext column (Expected Results), my description disappear and it does not allow me type anymore, I have to cancel and try again but is the same issue.

I attach the screensnapshot when it doesn't allow me type.

Thank you.