Thanks heaps Will.

Strange, this gives the same error on my machine as the previous one.

! Missing $ inserted.
<inserted text>
                $
l.74 \begin{tabular}
                    {|l|l|}\hline
? r
OK, entering \nonstopmode...
! Missing $ inserted.
<inserted text>
                $
l.74 \begin{tabular}{|l|l|}
                           \hline
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.

[1



But it works for you so probably there is something odd about it on my
machine. So the problem goes back to my own TeX settings.

Thanks a lot for spending your time on this.

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