DDD 3.3.7(i386-redhat-linux-gnu) gets 'BadWindow' error

[address@hidden]

This message has appeared to me:

X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  10 (X_UnmapWindow)
  Resource id in failed request:  0x0
  Serial number of failed request:  201392
  Current serial number in output stream:  201395
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  10 (X_UnmapWindow)
  Resource id in failed request:  0x0
  Serial number of failed request:  201394
  Current serial number in output stream:  201718

X error (invalid Window parameter).

Oops!  You have found a bug in DDD.

If you can reproduce this bug, please send a bug report
to <bug-ddd@gnu.org>, giving a subject like

    DDD 3.3.7 (i386-redhat-linux-gnu) gets `BadWindow' error

To enable us to fix the bug, you should include the following information:
* What you were doing to get this message.  Report all the facts.
* The contents of the `~/.ddd/log' file as generated by this session.
Please read also the section "Reporting Bugs" in the DDD manual.

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