Please can anyone help me how to upgrade or update my mac notebook my versionis 10.5.8 I have tried several updates and or upgrade and have not been able to . Is there any new OS X availabel for my version. Please Help Thank you
Click here, install the DVD, run Software Update, open the Mac App Store, and try purchasing Mountain Lion. If you get told it's incompatible, phone the online Apple Store and order a download code for Lion.