Trouble shooting

I work at the University of Tasmania, Australia as a part time tech support contact. Once a week, I try and solve queries and problems relating to Windows laptops, Mac books (No Ubuntu so far) and the iphone (Uni does not support any other phone yet). I've dealt with a few of these issues before through my own experiences with my old Sony Vaio laptop (which still works btw), my wife's HP Pavilion and my current Mac book. I shall list a few queries and the way i got round to solving them, here. There are many forums online and a simple search query will shed light on all the problems discussed here. In the future, I shall migrate this to another posterous blog, depending on how often I get around to updating my current blog.