Continous Reloading ?

Hello,

I am evaluating the current version from smartgwt.

I think I have the problem that the app is doing a continous refresh of the GUI. If a dialogbox comes up the screen is flickering with scrollbars and when click into TextItems the cursor always jump to the beginning, it is not possible to type a word inside the textbox.

Does anyone have an idea about the cause for this continous refresh?
Locally I didnt see that effect so it must have something to do with the deployment to the server (websphere 8.5). I am using IE8 and unfortunately I cant use any other browser.

Thx for any advice