Many issues can be solved by simply clearing saved defaults. To do this open SigmaXL > Help > SigmaXL Defaults > Clear Saved Defaults.  For DiscoverSim > Help > Clear Saved Defaults. If the issue persists, complete our online troubleshooter.  Please select the appropriate link from below:

Some activation FAQs include:

Some known error messages include:

For all other issues, please refer to our Help Desk or E-mail Us.