I'm using WireframeSketcher (latest version) as a plugin to Aptana.
However, when I rename anything a dialog box pops up with the following error message:
"The participant 'WireframeSketcher Rename Participant' caused an internal error and has been disabled for this refactoring. See the error log for more details."
There is no additional information in the error log (indeed no related entry).
The renaming appears to go ahead without problem. So the need to field the dialog box is more irritating than critical.
Problem has been observed for the past few releases of WireframeSketcher and on Vista, Win7 and Ubuntu.