Apple last week released two security updates, version 1.1 of Security Update 2007-005 (see "Security Update 2007-005 Released," 2007-05-28) and Security Update (QuickTime 7.1.6). As of this writing, Apple had said nothing about what was fixed in the 1.1 version of Security Update 2007-005, but the QuickTime security update fixes two issues in QuickTime for Java that could result either in arbitrary code execution or disclosure of sensitive information. That sounds similar to the security fixes in QuickTime 7.1.6 itself from earlier this month, but it seems to be different (see "QuickTime, AirPort, Security Updates Released," 2007-05-07). In either case, both updates are likely worthwhile. Downloads for Security Update 2007-005 1.1 are available in PowerPC (15.7 MB) and Universal (29.2 MB) forms, and Security Update (QuickTime 7.1.6) is a 1.4 MB download. Or just use Software Update to get the appropriate version for your Mac.
Open a Finder Window with the App Switcher
If you don't have any Finder windows open and want to switch to the Finder and open a window in one fell swoop, bring up the app switcher with Command-Tab and tab over to the Finder icon. While still holding down Command, press the Option key, and then release the Command key. You're switched to the Finder, with a new default window open for you.