Help! I have a mac book pro 17", yeah its a bit old, but well looked after. I have not had any problems with it. Have Maverick installed. However today it as playing up trying to log onto the internet, so I went to restart it - however it is now prehistorically slow. The grey screen appears with apple logo and and a booting bar underneath but its take almost an hour to boot to my password and login page. I input my password and try to log in but I get the loading circle and also the beach-ball where the cursor was and nothing happens. I restarted with access ti disk utilities and fixed the drive, nothing doing there, same thing happens. So rebooted again and used the panel to install the os system, again restarted and nothing!! just hours on the grey screen a with apple logo and booting bar, which has basically stopped half way through. I got nothing now? can anyone help me??? Please feel free to email me? I can't work and am in real trouble!!