Can't belive you took it to pc world!! Those ingrates don't have a clue what they are doing most of the time. Just try phoning them and asking a question.....and listen for the silence and then the erm.......followed by....I'll just ask someone...followed by the wrong information!
Fraid I don't know anyone near you...If you were near me I'd say give it to me.....I've not be beaten by a pc yet and I've lost count of how many I've had in bits at work!(mind you I'm a sound engineer not an IT tech....mind you some day's you wouldn't know it!
What version of windows and office are you running and do you have the official disks?
Has anything else stopped working??? Are you getting any error messages??
You might want to email me (see the button at the bottom of this post) with the answers to my questions....that's if I haven't offended you with my first paragraph.
---
Any fool can make things bigger, more complex, and more violent. It takes a touch of genius - and a lot of courage - to move in the opposite direction.