1 cannot sync my ipad2 with my mac os x version 10.4.11

You need to be running Leopard OS 10.5.8 to sync with your iPad.

Look on Amazon or eBay but make sure that you buy a black retail install disk. The grey update disks are machine specific and will not work.

Mac OS X 10.5 Leopard installation system requirements

http://support.apple.com/kb/TA24950

Leopard is no longer available at the Apple Store but may be available by calling Apple Phone Sales @ 1-800-MY-APPLE (1-800-692-7753).

If you can't obtain a retail install DVD from Apple, look on eBay or Google the installer part numbers to possibly find at an on-line store. Here's what to look for:

MB427Z/A Leopard 10.5.1 install DVD

MB576Z/A Leopard 10.5.4 install DVD

MB021Z/A Leopard 10.5.6 install DVD (single user)

MB022Z/A Leopard 10.5.6 install DVD (5-user family pack)

Installing Mac OS X 10.5 Leopard

http://support.apple.com/kb/HT1544

Mac OS X 10.5 Leopard Installation and Setup Guide

http://manuals.info.apple.com/en/leopard_install-setup.pdf

After you install the base 10.5, download & install the 10.5.8 combo update at http://support.apple.com/downloads/Mac_OS_X_10_5_8_Combo_Update

Caution - Leopard does not support classic mode. So, if you currently open OS 9 apps in classic mode, you won't be able to do this if you upgrade to Leopard.

 Cheers, Tom 😉

If this is an early 2006 model then you have one of the first Intel Mac computers which can run Snow Leopard (OSX 10.6). Snow Leopard is much cheaper and easier to purchase (you can probably buy it from Apple online) than Leopard.

Use System Profiler to get more information about your computer and compare it with the requirements listed below.

Snow Leopard 10.6 Technical Requirements - http://support.apple.com/kb/SP575 - note by K Shaffer - http://discussions.apple.com/message.jspa?messageID=12921514#12921514 : "Some early Intel-based Macs can't use Snow Leopard 10.6 installers; of those, the Core Duo (not 2 duo) were suspect and had issues." - and a qualifier by "a brody" http://discussions.apple.com/message.jspa?messageID=13028822 : "I think that refers to the ones without at least 1 GB of RAM."

A Mac OS X 10.6 Snow Leopard Application Compatibility List - http://snowleopard.wikidot.com/

https://discussions.apple.com/docs/DOC-2455 has a whole host of things required for Snow Leopard.