There are sometimes problems combining Wx & Alien::wxWidgets from the
wxperl and Activestate repositories.
In the PPM gui, under Edit->Preferences ensure you have added the wxperl
repository (it is available in the dropdown list).
Under View->View Columns ensure that 'repo' is selected so that you can
see which repository you are selecting modules from.
Select Alien::wxWidgets from the wxperl repo for installation.
Select Wx from the wxperl repo for installation/reinstallation.
After install, you should be OK.
Regards
Mark