word 2010 table headers and 'do not allow rows to break across pages' not working

Recently I've moved over to office 2010, having been an Office user for 10+ years. My issue is with  Word 2010. I'm ok in Word, no expert but get by and can do what I need to.  I've never had the below issues before and have used this function many times on Word 2007.

When I am using tables I have selected the 'repeat header rows' function.  However it is not working.  Anotherwords, my header rows are not repeating on subsequent pages.

Also, when using tables, I have de-selected (from table properties) 'allow rows to break across pages', so that my rows shouldnt be split across 2 pages.  However, this also is not working.

There are 5 tables in the document, all the tables were 'split' at some point via the 'split tables' function.  I created the table from copying and pasting lines from a powerpoint document, then converting that text in to one table, then creating columns to the left and right of it and have hand typed the column headings.

I have tried the following, to no avail:

1. Saving the document, closing and reopening it.  This did not work.
2. From table properties trying the different combinations of turning on and off the 'allow rows to break across pages' and 'repeat as header row across each page' and the 'repeat header rows' quick button from the layout screen.  None of these combinations worked.
3. Copied and pasted one of the tables within the same document and tried the 'repeat header rows' function in copied table.  It did not work
4. Created a new row below the header row. Copied and pasted the data and then deleted the original header row.  Deselected then selected again 'repeat header rows'.  This also failed.

Is this a problem with Word 2010?

Help would be appreciated.