Macros And Protection ..

I have a scoresheet with 60 contestants. Each contestant takes up 7 rows,
the first six of which are hidden to start with and I have put macros in the
adjoining column so that when they are clicked, the full 7 rows open up and
the table of scores can be entered, When entry is complete for that
contestant, a further macro when clicked will close up the 6 rows, leaving
just the main line (line 14) with the No, Name, “OPEN” macro and other Totals
in adjoining columns.

The sheet works fine, but as many people will use this programme, I need to
protect the sheets against mistaken entries etc., and as soon as I protect
it, the macros wont work and throw up a “unable to set the property of a
hidden range class, run time error 1004. I don’t want to leave the sheet
unprotected, can anyone advise me where I am going wrong.

I am also trying to find a way to validate “time taken” entries so that they
can only be input as minutes and seconds in the format of 09.56, within a
range of 00.01 – 10.00. Not having any success with this as it keeps
converting the data into something like a date.