Is there a way to avoid a #VALUE! error being returned where there is no
value to return?

The formula I am using is simple =E33-J33 however J33 contains a formula
and in this particular instance does not return a value, so the error I am
getting stems from here.

Anyone know of a solution?
Many thanks for any suggestions.
Pat

P.S According to my sent folder this message has already been sent, however
I am unable to trace it in this newsgroup.