odd plugins message in linux

running the precompiled 0.8.1 binary, the pad plugin isn't being detected properly (nothing shows up in the dropdown menu) and hitting OK in the configuration dialog gives me this message:

Could Not Load PAD1 Plugin 'Plugins/': Plugins/" cannot read file data: Is a directory

and the console gives me this:

Plugins/libUSBnull.so: undefined symbol: LoadConfig
Plugins/libPADwin.so: undefined symbol: _PADclose
Plugins/libUSBnull.so: undefined symbol: LoadConfig
Plugins/libPADwin.so: undefined symbol: _PADclose

Gtk-CRITICAL **: file gtkcombo.c: line 849 (gtk_combo_set_popdown_strings): assertion `strings != NULL' failed.

Gtk-CRITICAL **: file gtkcombo.c: line 849 (gtk_combo_set_popdown_strings): assertion `strings != NULL' failed.

Gtk-CRITICAL **: file gtkcombo.c: line 849 (gtk_combo_set_popdown_strings): assertion `strings != NULL' failed.


all other plugins were detected fine... any ideas?