Hi mushigaga,
Since you started experiencing this problem after switching to Mac OS, I feel it is most likely that you are now using a web browser that is not fully supported by our site. The only browser we fully support for Mac OS is Mozilla Firefox, which can be downloaded free of charge from
http://www.mozilla.comIf you are already using the Firefox browser, or if you continue to experience this problem after switching to that browser, please contact our customer support team by completing the web form on the following page of our site:
http://www.auctiva.com/help/requesthelp.aspx-Mike