The difference is that an array is a wrapper around the data, therefore, the correct answer remains &v[0];. A vector of int's is a block of ints, the first one being at &v[0];. v has nothing to do with int's or memory, it is an instance of the vector class. In fact, if you want a pointer to an element, you must dereference an iterator, then ask for the address, exactly as you have put it: &(*(V)). VC6 wrongly will accept the iterator as a pointer, VC7 corrects this. Christian I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002