That does seem odd. Could you maybe do a M-x org-submit-bug-report, and if you aren't doing email in Emacs, copy and paste the output (with your org-mode configuration, it will prompt you to include it) into an email to
address@hidden?
I'm running Emacs 23 on Windows, and using MobileOrg, and I haven't seen that problem. But we might have a start on it if you could send along your configuration and customizations per the above.
This one seems strange enough that maybe it might even be worthwhile to send along the .emacs file, just in case (properly sanitized for personal info, of course).