IE 9 quirks mode

Hello experts,

IE9 uses all the time quirks mode, in which we have some display problems. If we change the mode manually to IE9 standard it works.

We use DS 1.3 SP1 installed on Netweaver 7.31 SP 8 and we updated all java components on the latest version.

I read the nw admin guide and some posts here, but nothing really helps us.

Here is what we tried out:

     - isolation mode = url

     - launch in new window = separate headerless (standard mode)

     - height = full page

     - We also uploaded the script which is mentioned in this post Launching portal applications in Internet Explorer standards mode rendering

Are there some other configuration options, to set IE9 standard mode as default?

I hope you have some advices for us.

Thanks

Robert