"About AirPort Extreme Update 2008-003 (now called -004)
This update is recommended for all Intel-based Macintosh computers running Mac OS 10.5.5 and resolves some issues with AirPort connections when roaming in large Wi-Fi networks.

System Requirements: Mac OS X 10.5.5"

"Cocktail 4.2 adds ability to search and delete corrupted preference files, adds a searchable database of Mac OS system error codes, adds a list of commonly used network ports, improves the clear log files procedure, fixes a number of minor bugs discovered in the previous release, contains some interface improvements as well as updated Help files and Automator actions.
The update is strongly recommended for all users of Cocktail (Leopard Edition).
Cocktail 4.2 (Leopard Edition) is available for download from: http://www.maintain.se/cocktail/download.php"

A reader sent a note about his first experience with v4.2 today:

" I tried using Cocktail v4.2 Preferences check feature. It found 2 corrupted prefs for me:
com.Logitech.ControlCenter.plist
com.apple.iphotomosaic.plist
So, I selected the first one (Logitech), and from the drop down "gear" chose to Move to Trash. Worked fine. Then, I selected the second one, and chose again to move to trash. I get an error saying the first one could not be moved to the trash. I looked, and it was there. Yet, no way it moved the second one to the trash, because I get an error about the first one, that DID move to the trash. Would not even "reveal in Finder". I had to manually locate and move that file.
(I asked if he had tried selecting both items to delete at once.)
I did not try that. I only had 2, and selected one at a time to be cautious.
-SCB"

BTW - I've not ran it with 10.5.5 yet, but in the past I've used the (freeware) Preferential Treatment prefs scanner utility. (Another often forgotten app that has come in handy in the past is Apple's ColorSync Utility, which can scan for corrupted/damaged display and printer colorsync profiles and attempt repairs. It's installed by default in your Apps/Utilities folder)

" The ultimate Beatles collector's gift. Includes a numbered 120G iPod in classic black etched with the Beatles' logo on the front and Abbey Road on the back. Includes 13 original Beatles' CDs, plus two masters and the "Love" CD, all with an engraved guitar pick. Packaged in a box designed by Psycho Bunny. Only 2500 available."

• OS X: "Unknown Error -2147352480" when burning CD-R, CD-RW, or DVD-R media (buffer underrun)
• Transferring information to iPhone from another phone
• Resetting PowerBook and iBook Power Management Unit (PMU)
• Promise VTrak: RAID Controllers - Direct Attached configuration script
• AirPort Express: Difficulty joining third-party network that is using WEP
• iTunes Store: Error -42023
• Apple Remote Desktop 3: Clients become unavailable if screen locked or curtained during login
• MacBook: How to install memory
• MacBook: How to remove or install the battery

• Apple Reports Fourth Quarter Results
• Enigmo 1.2 Update (iPhone/Touch game)
• Adobe Soundbooth CS4
• Apple MacBook (2008) review (Laptop mag)
• New MacBook, MacBook Pro Reviewed - Verdict: Super Speed, Foxy Facades (wired)
• Leopard Cache Cleaner 4.0.17
• Antitrust case against Apple still on, says Mac clone maker
• Benchmarks: The new MacBook and games
• Psystar To Court: Antitrust Claims Against Apple Should Stand
• Opera 9.61 (browser)
• OnTranq 1.1.6021 (File transfer and queuing)
• StuffIt Expander 13.0.1 (freeware)
• iBackup 6.5 (freeware)
• Next-Gen T-Mobile G2 in the Works: Oh Come On!
• Nvidia Unveils Desktop Version Of MacBook Graphics Chip
• Cell Phone Mania Must Stop Now! (Dvorak)
• Troubleshoot (Windows) Like a Pro (PCmag)
• Intel Slashes Desktop, Server Processor Prices
• The Best Blu-ray Players