My computer (Inspiron 5100 running XP) boots very slowly then on occassion just stalls …moving the mouse works fine but clicking on anything results in no action till often a minute later … then it seems fine again for a bit … looking at the task manager, the cpu is only 3% utilized so it’s not like there is an app hogging the machine. I have run ccleaner and abexo and ad-aware and they have not fixed the issue …. anyone with any sugeestions?