Unity 3.5 beta problem

Hello ,

I run in trouble , i install unity3d beta 3 , when i run old project it ask me to upgrade it and i upgrade review new features and now i want back to old unity 3.4.2f3. So my steps : remove beta unity , install old unity , while install old unity in installer i get message that never version already install but i click install old anyway. After i run old version of unity installed after beta i still have beta version !!!

I need to complete uninstall beta version because all me team use 3.4.2f3.

Any ideas ? I use mac os lion

Thank you.

I solve the problem , if you use mac os , just open terminal and type find . -name ‘com.unity3d.*’ , after it you will receive list of unity files in system , after it remove all of them , with sudo rm -r filename. I know there is a better way to make it with bash command but i make it manually.,I found