error on fontsize change

[It's me FKtPp ;)]

Dear all,

The latest

ftp://ftp.xemacs.org/windows/testting/XEmacs_Setup_21.5-b28-2007-09-06.exe

in windows xp home edition will through out an 'unknown tag-set
x-resource' error when changing font size from menu.

stack trace following:

--8<---------------cut here---------------start------------->8---
  # bind (standard-output stack-trace-on-signal debug-on-signal stack-trace-on-error debug-on-error)
  # (unwind-protect ...)
  specifier-spec-list(#<font-specifier global=<unspecified> fallback=(((mswindows) . "Lucida Console:Regular:10::") ((msprinter) . "Courier New:Regular:10::") ((mswindows) . "Courier New:Regular:10::") ((msprinter) . "Courier:Regular:10::") ((mswindows) . "Courier:Regular:10::") ((msprinter) . ":Regular:10::") ((mswindows) . ":Regular:10::")) 0x1ef3> nil (x-resource) nil)
  # bind (ms-exact-p ms-tag-set ms-maparg ms-locale ms-func ms-specifier)
  map-specifier(#<font-specifier global=<unspecified> fallback=(((mswindows) . "Lucida Console:Regular:10::") ((msprinter) . "Courier New:Regular:10::") ((mswindows) . "Courier New:Regular:10::") ((msprinter) . "Courier:Regular:10::") ((mswindows) . "Courier:Regular:10::") ((msprinter) . ":Regular:10::") ((mswindows) . ":Regular:10::")) 0x1ef3> #<compiled-function (spec locale inst-list arg) "...(48)" [inst-list new-spec-list inst G7607 tag-set nil old-delq x-resource custom] 4> nil nil (x-resource))
  # bind (fsize new-spec-list new-default-face-font face-list-to-change from-slant from-weight from-size from-family font-data dcache size weight family)
  font-menu-set-font(nil nil 12)
  eval((font-menu-set-font nil nil 12))
  (dispatch-event "[internal]")
  # (condition-case ... . error)
  # (catch top-level ...)
--8<---------------cut here---------------end--------------->8---