Gnus not working in Emacs-Snapshot

["Sven Bretfeld" <sven.bretfeld@gmx.ch>]

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Hello

I've just installed Emacs-Snapshot on Debian Lenny. The current version
is 23.0.91.1. 

Gnus is not working in that version. Is this a known problem?

Here is the debug message:

,----
| Debugger entered--Lisp error: (error "Invalid buffer type: if")
|   signal(error ("Invalid buffer type: if"))
|   error("Invalid buffer type: %s" if)
|   gnus-all-windows-visible-p((vertical 1.0 (group 1.0 point) (if gnus-carpal (quote ...))))
|   gnus-configure-windows(group)
|   byte-code("\b.„.\0	.„.\0.† .ˆ.‚Q.Ã.Ã.!.ˆ.‰\n!.\f.„.\0.Â.!.Ã. .ˆ.\x1a.ƒ+.Ã.Ã.Ã.\".ˆ.‹.ÂŽ.\".ˆ..‘.^[\b#.ˆ.‡.Â’!.ˆ.“ .ˆ.”.^[!.ˆ.• .ˆ.–.—!.ˆ.˜ .ˆ.‡.™!.ˆч" [dont-connect did-connect gnus-startup-file gnus-current-startup-file gnus-slave gnus-use-dribble-file gnus-group-quit gnus-run-hooks gnus-startup-hook gnus-make-newsrc-file gnus-dribble-read-file gnus-request-create-group "queue" (nndraft "") "drafts" (nndraft "") gnus-setup-news nil gnus-setup-news-hook gnus-start-draft-setup gnus-group-list-groups gnus-group-first-unread-group gnus-configure-windows group gnus-group-set-mode-line gnus-started-hook gnus-agent level] 4)
|   gnus-1(nil nil nil)
|   gnus(nil)
|   call-interactively(gnus t nil)
|   execute-extended-command(nil)
|   call-interactively(execute-extended-command nil nil)
`----

Thanks for help.

Sven

-- 
Sven Bretfeld
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