Tables and lists

Hello,

I am learning to use Lout and have a few questions :

I've been trying to make a list and get the following error :

     35,1: no @ItemPlace galley target precedes this @ItemPlace&&preceding
     37,1: no @EndListPlace galley target precedes this 
@EndListPlace&&preceding

I am not quite sure what it means, here is my original code :

@List
@ListItem {example 1}
@ListItem {example 2}
@EndList

The other question I have is that when I want lines to separate the 
cells of a table :

@Tbl
     rule {yes}
     aformat {   @Cell width {4c} @Cell A  |  @Cell width {10c} @Cell B  }

I get the expected lines plus a frame around the content of each table cell.

I am not too sure if it is a user error or if my Lout installation is 
bad somehow. I use windows but I've installed the Ubuntu command line 
from which I use Lout. I edit my Lout file using Notepad++ with Unix 
"line feed" and ISO 8859-1 encoding

Kind regards

Yannig