Hello,A French user detected this (see lyx-fr mailing list) with MikTeX, and I confirmed with TL 2011.
This is due to an uncompatibility between powerdot version 1.4g and enumitem version 3.5.
This has been corrected recently on CTAN by Herbert Voss (powerdot version 1.4h). Please find attached two edited version of the file powerdot-exemple.lyx:the first one adds a warning in the initial LyX note, the second one compiles as I added Herbert's code in the preamble.
The latter works all right with earlier versions of the TeX distribution (TL 2010/2009). BTW, CTAN distributes from /macros/latex/contrib/powerdot/lyx old versions of powerdot-example.lyx and powerdot.layout Maybe these should be updated ? -- Jean-Pierre
powerdot-example_warning.lyx
Description: application/lyx
powerdot-example_preamble.lyx
Description: application/lyx
