Hi. I think you will have to give more explanation of "Stopped Working."
For example, if you are trying to Minimize =Exp(A1), then this occurs at A1 = -Infinity.
Solver would most likely give the error message "Does not converge."
If it's a Maximum problem, and you don't have any upper constraints on A1, then =Exp(A1) will give #Num error if A1 goes over ~ 709.
Again, just guessing at this point.

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Dana DeLouis


"DD" wrote in message ...

Solver was working for me before, but when I inserted in my model the
function "EXP", Solver stopped working. I'm not sure why. Any ideas?