Antwort #7 am: 11. Oktober 2011, 21:42:17
i applied all the modification
saved the header as utf-8, then as ANSI, then as utf-8 without BOM, then iso 8895-1.
i checked, there is no space or word-wraps.
the only working one is the utf-8 and the  gone but the ö can't be displayed correctly, the others ä or ï are okey!
so the prob is there somewhere! but my little mind can't find it!
here is the original code:
<meta http-equiv="Content-Type" content="text/html; charset=<?php echo $_SESSION['language_charset']; ?>" />
if i change it to
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
the it works even if i don't save the file in the desired way!
P.S.: I even tried a new header.php from the download files ( the original files of modified eCommerce Shopsoftware) and upload it via ftp but the same thing! wondering there if it is really from the header!
