Check which version of Java you are using.
Today's troubleshooting coverage of Mac OS X 10.4.9 includes distortion in dock and desktop icons, as well as problems with Canvas X.
EFI has now released a CUPS filter fix that should resolve an issue where users are unable to print to some RIP set-ups after updating to QuarkXpress 7.0.x.
DiskWarrior 3.0.x: Problems with FireWire 800 and SATA 150 or faster drives; Update: QuickTime 7.0.4 implicated
iDVD 5.0.x: Problems burning/saving iMovie HD 5.0.x projects
Office 2004 (#5): General issues; Word: workaround for older files; Entourage: Silk conflict; Excel: Red X problem gone; more
Safari 1.2.x: Problems uploading to some sites
Troubleshooting Mac OS X 10.3.x: Problems with Ethernet Speed; Address Book glitch
Troubleshooting Mac OS X 10.3.x: Problems with Ethernet speed
Troubleshooting iTunes 4.0.x: Problems burning AAC files