Thank you for your reply!

I have just updated the first post, so you can see what i did to get it in the current state.

What confuses me is that without adding all those "Display Custom Site Titel" options, i would not get any Site Title to display if Jom SEF was enabled.

Now i am wondering if this is correct, or if i did something wrong?
How would you normally configure JomSEF to just display the Global Value for the Site Titel.

Anyone a suggestion how to properly configure JomSEF to correctly display the Site Tile everywhere?

As soon as i turn on JomSEF, the sitetitle "Georg Haglmayer" is nolonger displayed in the Browserbar when i am in the frontend - it still is however in the backend.

If i turn JomSEF OFF, then the sitetitle "Georg Haglmayer" is again showing up in the Browserbar / tab.

www.haglmayer.at

Anyone an idea why this is happening?

Also installed is JomFish, but no translations are done yet. Languageselection is hidden for users and site is running with the default language.
The JomSEF Option "Translate URLs?" has no effect on this problem.

*EDIT1*
Just found it on my own
SEF Extension -> Common -> Custom site name -> insert name -> save -> all fine now :)

Suggestion:
Please fill that one out automatically on installation by using the Global Site Name Value!

*Edit2*
Now the Site Name was display 2 times!
Had to dissable "Use sitename in page titles" inside "System - ARTIO JoomSEF" even though "Prevent sitename duplicity" was on.... :S

*Edit3*
Still not fully working.
In the Guestbook, the "Site Name" is still missing. How do you configure that properly? I am lost :(

*Edit4*
JoomSEF - Extensions Management -> Phoca Guestbook -> Common -> Custom site name = "Georg haglmayer"