Tiger is now officially up to 10.4.3. The update includes a boat load of fixes, so grab this 97MB file here if you haven't auto-updated yet.

"Among the notable fixes are speed improvements to finder Spotlight searches, a fix to allow sending of .Mac mail if port 25 is blocked, improved window scrolling, fixes for compatibility issues with Word and Excel 2004, better mounting of MS-DOS formatted volumes, and more detailed error messages for .Mac problems."