I'm on Win10, when I upgraded to the new OS I discovered NXT3 was no compatible.
I switched back to Creator 2010 and all was good and then it died after about 4 months.
I ordered NXT4 on disk. The disk was corrupted and would not install properly. I contacted customer support for help on the install, the "expedited" contact I was told they would request took a week for them to respond.
By then I decided to try the download, the download worked. NXT4 was up and running.
Today I tried my first video and "Houston we have a problem".
I wanted to add a narrative - the microphone under the screen shot - the playback was in hyper-speed - Chipmunks
I can't find a way to correct the speed of the audio dub.