In regards to my last post about hair loss, after looking up tons of websites this seems to be what my chessie is suffering from. She was just spayed last week and is recovering nicely. It should be interesting to see if her coat recovers.
A site worth visiting if you are having the same problem.

http://www.gopetsamerica.com/dog-health/congenital-hypotrichosis.aspx

Not too many answers on this but at least it does not bother her.

George