Argh!!!!!

My mac keeps going mental and not in the predictable fixable way a pc does. It randomly makes the keyboard not work in finder, crashes when I open youtube, crashes indesign, forgot that indesign was authorised, randomly selects one function in indesign that you can only do until you restart it, the right click stopped working and the you have to clean wheel ball thing in the "mighty mouse" by pulling it apart and it is now held together with blue tac (their instructions about cleaning it are full of shit)
I'm not some pc loving mentalist either i'm a designer so I should love the thing but I think windows 7 is better.

Arrrrgh!

*end rant