The update from 1.0.5 to 1.0.6 if you started using Easel will cause all your widgets to move from the sidebars in the appearance -> widgets to the inactive region.
The reason for this is because of an ID (script and css) issue with a conflict with WordPress's own id="Footer' in the footer area with a single browser, Safari 5.0.2 for the MAC, nothing else is having the issue, however, needed to fix it.
So anyways, using the sidebar ID Footer and wordpress having their own ID Footer caused the footer sidebar not to be able to be opened cause the script in safari 5.0.2 for the mac would get confused.
Sooo, I apologize for the update losing your widgets to the inactive region, but it was a rare bug that did need squashing.
- Also in this update was a change from the graphic arrows to text based ones, subdirectory installations of WordPress received the wrong path to where the arrow images were located, so instead of graphic arrows I opted for text based ones.