The new snapshot 10.70 fixed regression mail panel, as well as improved dialog boxes on the Mac. Mac users on older systems will also see a fix for the slow entry bug. (Will be available in update 10.62 and for PowerPC.)
Known regressions
DSK-311905 [Mac] (Text entry can be slow with a large number of bookmarks)
DSK-311564 [Windows] (There may be problems with the MSI installer when upgrading)