Upgrading from Photoshop Elements 3.0 to Photoshop Elements 4.0

One of my goals for today is to get Photoshop Elements 4.0 installed so I can start working on my review of the new version. Fortunately, before I started, I came across a couple of documents in Adobe's Support Knowledgebase that might save me some trouble with the upgrade. You'll want to check them out if you're planning to upgrade Photoshop Elements.
• Common issues when you upgrade from Photoshop Elements 3.0 to Photoshop Elements 4.0
• Hourglass or low-resolution preview when you scroll through Organizer catalog in Photoshop Elements 4

On this site:
• Photoshop Elements User Resources
• Organize Your Photos with Photoshop Elements
• Adobe Photoshop vs. Photoshop Elements: A Comparison