In step 4 of the wizard, the text "Select the modules ..." at the top appears 
with a grey background instead of the background colour used by the rest of the 
window.  Also, in the list of modules below that, the tick boxes appear to be 
using the same colour as the window for their background (regardless of whether 
the row is highlighted) instead of the colour used by the rest of the fields.  
This makes them appear with a differently coloured square around them, and 
looks bad when using WindowsLookAndFeel with a colour scheme other than Default.