Cheers for all the replies. As suggested, I'll take it slow and do it to the 5th fret first.
[quote]Write out the note names from A to G, ignoring sharps and flats for the moment, several times, cut them into squares and put them into a bag.
Write out the string names, E, A, D and G, several times and cut them into squares. Put them in another bag.
Give both bags a shake, then pick a bit of paper from both bags. Try to find the note on the string that's specified.[/quote]
I will definitely be trying that out in the future!