I sent this issue to support@cutesoft.net with FileMon log over a week ago but have had no response so lets try it here.

I have tried the latest download and the demo site and can reproduce the problem by simply uploading a few word documents. Initially the dialog opens quickly - almost instantly, then after adding a few word docs it takes over a 60 seconds to open. This is not an upload problem - simply trying to view the insert document dialog when word docs exist in the documents folder. For sites with many word documents the editor is unusable, and consumes 100% CPU for long periods, before giving a memory exception.

Also when clicking on a word document in the insert document dialog why does it show the (binary) contents - serves no purpose whatsoever - it just makes it slow to select a word doc - if the dialog does actually open that is.