Under 21.5, I'm still seeing the problem Michael described in:
http://list-archive.xemacs.org/xemacs-beta/200202/msg00135.html
pressing M-x results in this error message:
xemacs: X Error of failed request: BadValue (integer parameter out of range for
operation)
Major opcode of failed request: 91 (X_QueryColors)
Value in failed request: 0xffffffff
Serial number of failed request: 958
Current serial number in output stream: 958
This bug appeared sometime after 2002-01-29.
This bug is triggered by:
(resize-minibuffer-mode)
Just to take a shot in the dark, I think your generic toolbar code may
be involved, Bill. Not very many code changes have gone on since
1/29, and fewer still have been X-related.
- vin