Gigapixel 7.4.4 (lastest) will not run, I have a modern PC etc all other Topaz programs are fine?

Can someone help me out here, I downloaded the 7.4.4 Gigapixel and deleted the previous version. Cannot get the new version to run at all?

I finally managed to resolve this issue, long story for someone like myself who has very basic understanding of PC software issues.

Thanks for the update and I apologize for the slow response. We have had unexpected volume in the past few days.