On my dad's computer, sometimes, when he turns it on, the whole vista start bar doesn't work, he can't click on icons on his desktop, and he pretty much has to reset the computer to fix it. Can anyone tell me why this happens? Thanks Alex
Is everything up to date? Windows updates and any drivers for graphics card etc?
It could also be a program that is loading on startup that is actually causing the issue. See if the issue happens when you start Vista in Safe Mode. (Press F8 while the PC is starting up but before you see the Windows loading scroll bar)