I've tried unsuccessfully to download noteworthy sheet music scores from cyberhymnal and other sites with no luck. What do I do? I've got version 1.75 and I tried downloading the viewer again.
Although you haven't described the nature of your download problem, it is hard to imagine how downloading the NWC viewer will fix a file download problem.
What does "unsuccessfully" mean? What problem did you experience when you downloaded?
Let me guess: The scores downloaded from Cyberhymnal are not actually NWC files, but are a number of NWC files within a ZIP archive. Before use, the ZIP file has to be un-zipped. Perhaps Chris didn't un-zip them?