Thanks Lynne,
I did give this a try, but most likely not in the appropriate manner

There is the option to "flatten" a grid, which shows HTML coding and tells you that you are working directly in HTML instead of the wizard.
The
layout manager UI HTML than shows:
<div id="doc3">
<div id="bd">
<div class="yui-g">
<div class="yui-tvb-l25 first yui-panel">
<ul class="list_no_decoration widget_list" id="widgetlist_column1">$column[1]</ul>
</div>
<div class="yui-tvb-l50 first yui-panel">
<ul class="list_no_decoration widget_list" id="widgetlist_column2">$column[2]</ul>
</div>
<div class="yui-tvb-l25 first yui-panel">
<ul class="list_no_decoration widget_list" id="widgetlist_column3">$column[3]</ul>
</div>
</div>
</div>
</div>
The
default template HTML shows:
<div id="doc3">
<div id="bd">
<div class="yui-g">
<div class="yui-tvb-l25 first yui-panel">
<ul class="list_no_decoration widget_list" id="widgetlist_column1">$column[1]</ul>
</div>
<div class="yui-tvb-l50 first yui-panel">
<ul class="list_no_decoration widget_list" id="widgetlist_column2">$column[2]</ul>
</div>
<div class="yui-tvb-l25 first yui-panel">
<ul class="list_no_decoration widget_list" id="widgetlist_column3">$column[3]</ul>
</div>
</div>
</div>
</div>
Since I am not familiar with coding, I can hardly make head or tail from this. (Sorry, but folks like me do exist) However, it looked to me that the "l25" and l50" refer to the columns. So, took the gamble and changed those to "l20" and " l20" The result however was one broad column and one smaller one.
I have reverted it to original which brought back the original lay out (pfew..) Glanced at the other 3 column grids, but that was not much help. What I don't understand is that some 3 column grids only have one "instruction" and the above one refers to three widget lists, whilst one of them is intended for articles. How does this work and what am I doing wrong here?