Simulation premium is listed as a licensed product on my PC, but I cannot activate it from the list of Add-Ins.

It's not listed at all, only Flow Simulation.

Very odd.

This is in a lab of 20 computers, I've tried reinstalling the product, but still no luck.

Solidworks 2013 is installed on the same computer and Simulation is available in that version but not in 2015.

Thanks,

Matt