Unable to select items in the material requirements section of the Work Order (HTML Page)

Hi

I'm unable to add an item on a WO. When I go on the Material Requirements section, if I enter the Item number and try to save, it tells me to enter an item number. If I click on the magnifying Glass, the search screen opens. I enter the item number and click on the GO button. The item is found and displayed. But if I click the Quick Select Button, nothing appens. Usually, the search screen close and the item number is copied in the field with the description.

Can this be caused by IE9? Because on IE8 it works. Settings seems to be the same on bot browser.