XEmacs 21.5, Gnus and charsets

Hello all I encounter some problems when working with Gnus under XEmacs Beta. Here they are: If I write a new article when running under 21.5.7 from 25. July ISO-8859-1 is used, only if I use the Euro sign ISO-8859-15 is used, if I reply to an 8859-1 message and use the Euro everything is send as 8859-15. This is what I want, I needed no special configuration for this to work. If I write a new article when running under 21.5.8 from 25. August ISO-8859-15 is used even if the characters I use all fit into 8859-1, if I reply to an 8859-1 message everything is always send as 8859-15. If I write a new article when running under 21.5.9 from 24. September ISO-8859-9 is used (it's the same as 8859-15 AFAIK) even if the characters I use all fit into 8859-1, if I reply to an 8859-1 message the unification is broken, Gnus wants to split the message into several parts. Because of this 21.5.8 is unusable for me at the moment. Latin-unity is installed and up-to-date. I'm running under Windows, native build, all optional libraries, all packages installed and updated, you should find build-reports for all three builds on the build-reports list. Gnus is CVS from yesterday but should be innocent as everything still works with 21.5.7 (the same Gnus was used in all three tests). Any idea what is broken and how to fix it? -- One Ring to rule them all, One Ring to find them, One Ring to bring them all and in the darkness bind them In the Land of Mordor where the Shadows lie.