Debut reinstall not accepting

[GeneAum]

I had upgraded to Debut 1.6 not knowing it was a pay upgrade.

 

So, I uninstalled 1.6, rebooted, and reinstalled 1.50.

 

Now when I enter the registration info a window pops up with 'Old Version Key'.

 

This was working just fine for a long time (e.g. was able to use mp4 and .mov encoders).

 

I did try a version 1.4x install, but it didn't like the key either.

 

I need to get v 1.5 working again with .mov and mp4

 

 

Steve