Presenter 11, HTML5 export names slides wrong, so it won't start

Hi all,

I have a problem with the HTML5 Export of Presenter 11.

OS is Win7 Prof 64 bit

Office / PPT 2010

Language: German

Apparently it exports the slide names in the wrong language (i.e. German):

It names them "File1.PNG" etc. but expects "Slide1.PNG" (s. screenshot).

I did rename them by hand and it is working now.

How do I get it to export it correctly, since it is no option to do this by hand for every project ?

Thank you

PS: the first error demands a file/folder which is not even there, but apparently that doesn't have an negative impact.