Uploaded 2 screenshot :
1st : citronade: clearly broken
2nd : No js for button (and some style are broken too)

And look at "iframe source" you find admin_core.js

The error is caused by line 619 in templates.php:
App()->getClientScript()->render($myoutput);

In AdminController.php we incorrectly register the javascript in the init function. This should instead be done in the view or layout.

Myabe we have to do some "wiki" for all of this specificty ;).

ACtually : it's better to register script in view ? Right ?

Hi sammousa : even with removing this line , i have same problem.

Doing it like this:
//@$fnew = fopen("$tempdir/templatetemp$time.html", "w+");
$fnew=false;

Attch the new screen capture.

Seems to be rendering on public survey ?

PS: and try with replace all render by renderPartial for quick fix too ( the $fnew=false + renderPartial).

No fix

Fix committed to 2.05 branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=13444

Arrggg ...don't know reset !

Great, thanks !

2.05RC7 released