Solver unavailable after installed

I am trying to use solver, and I selected it from the add-ins menu. The
solver function appears on the tools menu, but when i select it, it shows the
following error message:

"Solver32.dll is unavailable - you will be able to define and edit solver
models, but not actually solve them. To fix this, please use Excel setup to
reinstall Solver."

How do i go about doing this?
Thanks.

Also- i have the Solver32.dll file, i just don't know how to get it to work
using the file.

"jjbf22" wrote:

> I am trying to use solver, and I selected it from the add-ins menu. The
> solver function appears on the tools menu, but when i select it, it shows the
> following error message:
>
> "Solver32.dll is unavailable - you will be able to define and edit solver
> models, but not actually solve them. To fix this, please use Excel setup to
> reinstall Solver."
>
> How do i go about doing this?
> Thanks.