Fix iTunes Common Problem

Love it or hate it, iTunes is one of the most popular media players available, thanks to the success of the iPod and iPhone. The following tips should come in handy for those of you who use iTunes for Windows XP, in the event that your iTunes installation ends up in less-than-perfect operating condition.
First off, we suggest uninstalling iTunes from the Add or Remove Programs Control Panel and then installing the latest version of iTunes downloaded from Apple.com. This may fix some issues with older versions. Apple also suggests keeping your anti-virus software up to date. Now, on to some more-specific issues.

Problem #1

Certain iTunes screens are pink. (Note: Only a problem if you don’t like pink.)

Cause: Windows is set to display a low-quality color palette, and thus cannot correctly render the iTunes window when it demands a high-quality color.
Solution: Make sure Windows is set to display 32-bit color in the Display Control Panel. This will be under the Settings tab, as “Color Quality.”

Problem #2

Error messages as follows:
“iTunes might be unable to launch or communicate with iPod or iPhone.”
“The iPod (Customer’s iPod) cannot be updated. An unknown error occurred (-50)”
“The iPod (Customer’s iPod) could not be restored. An unknown error occurred (1418, 1429, 1430, 1436 or 1439)”

Cause: This symptom may be caused by an issue with the digital signing of Windows XP drivers.
Solution: Re-register Certain Windows XP Drivers
(Copied from source: http://support.apple.com/kb/TS1539)