В ответ на: New known issues • UNIX: Tooltips with the native skins look weird • Last week's snapshot (Windows build 9735, Mac build 4603, and Linux/UNIX build 1754) contained a serious IMAP bug that could cause internal data corruption. This problem is most likely to affect those with TLS enabled. Symptoms include headers displaying, but bodies missing and/or duplicates messages. The underlying cause of this corruption is fixed in this snapshot, but unfortunately, there's no fix for the corruption. The only way to fix this corruption is to delete your Mail directory and start over.
Skin changes The last week has seen quite a bit of work on improving the native skin on Windows. This includes both the "classic" look and the XP/Vista themed look. Some of the improvements you will see in this regard are:
• The background in the panel selector toolbar is less dark • Close buttons in tabs and notifications have native elements • Tooltips and notifications have native elements • Margins on the dropdown button are gone • The element used to show/hide the list in Delete Private Data and other places is native • The sort arrows up/down on listview column headers are native • The tabs in the Windows "classic" skin are now more like real tabs and no longer sunken buttons
There will be more skin changes forthcoming.
Changelog •  Fixed sorting issues in mail •  Fixed several IMAP synchronization issues •  Fixed secure connection on IRC •  Fixed problem with closing wrong tab if click tab to minimize was enabled •  The close button on tabs is now red again •  Fixed syncing of speed dial update intervals •  Mac: Fixed freeze on HTTP auth dialog • Experimental support for recursive mbox import • Fixed some issues regarding IMAP labelling of messages (eg, spam) • Calmed down the link status field a bit (Don't change it unless something actually happened) • Some improvements to fast forward, works better on ie engadget.com and ebay.com • Added /notrayicon command line argument on Windows as well (yay) • Fixed issue where downloaded message bodies would disappear • Fixed TLS handshaking issues, which could cause problems when sending mail • Fixed over-wrapping issue with right-aligned mail headers