I have a suggestion as an avid searcher that I think makes things alot easier. I use a bookmarklet . It allows for 2 choices....
-highlight a word or phrase ,then activate it
-call it up and enter your search term.
I use it constantly in KM without problem. The drawback is that it is javascript
which I know many don't like. Enter the following as the URL location in a new
bookmark. It should be all one big line (limitation of this forum, sorry):
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javascript:q=document.getSelection();for(i=0;i<frames.length;i++){q=frames
.document.getSelection();if(q)break;}if(!q)void(q=prompt('Enter text to search using Google. You can also highlight a word on this web page before clicking Google Search.',''));if(q)location.href='http://www.google.com/search?client=googlet&q='+escape(q)
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Replacing the default search with this is another option (I think), haven't tried it yet.