I've just sat down to do some work and have discovered that the kids have struck again!
I prefer to work in print preview view but the same problem appears to affect all views. The problem is that whenever I start a new line eg at the beginning of a paragraph, the insertion point moves about a third of the way down the page.
I'm sure that it is easy to fix if you know how but sad to say I do not.
Thanks for your continued assistance to this duffer.
Assuming that you do not have loads of custom formats and AutoText entries and so on in the default document template you could try the following.
Use Start, Search to look for the file normal.dot (note: .doT not the .doC which are for Word doduments). You will need to enable searching for hidden files and folders in the Search options to be able to see it.
In the search results window, right click on normal.dot and select Rename. Call it normal.old
Now try starting Word and see if the problem is fixed.