When LiveSwif is started, the following dialog is opened:
"Your system's Microsoft Comm Control is too old, LiveSwif requires version 5 or above. You can download it from: http://www.microsoft.com/downloads/details.aspx?displaylang=en&familyid=6f94d31a-d1e0-4658-a566-93af0d8d4a1e
"
Even if you download the newest version, the problem still appears. When you use Library Window or combobox on the left of the color pallette, LiveSwif crashes.
The only solution known by me is to disable Library Window and not to hover this combobox.