I use Solver with Excel 2007. After starting Excel, Solver will not work. Both boxes for Solver Addins (yes, there are 2) are checked. The only solution I have found is to uncheck both boxes, close the addins list, opening it again and check both boxes. After closing, Solver works fine.

I have tried to write VBA scripts to automate this but none have worked. Only the manual procedure indicated will do the trick.

Any help appreciated.