Hello again. Thank you both for your replies.
Please excuse my stupidity...
I have been using the (default?) CUDA version via the icon in the start menu... I did not know there were other versions... I figured the installer did some magic and figured out what my system was capable of and installed the appropriate version... After seeing the picture arumiat provided, I looked in the start menu to see if there were other versions of 3DC and in the "All Programs" menu I located a 3DC folder with four versions in it... I chose (DX)-64, as opposed to (DX)-64-CUDA and it appears this problem is solved!
I hope... But it appears to be so far... I click the Voxel room, click the sphere and I get a sphere... And I can use the brushes to mutilate it and other neat stuff!!
I sincerely thank you all very much for taking the time to help me out... I'm super happy because I've been itching to start learning 3DC... Well, I hope it was itching to learn and not some parasites, but either way I'm overjoyed as I probably would not have been able to figure this out on my own within any normal human lifespan.
And just in case someone is Googling this or doing a forum search- the final answer is:
Apparently if you have CUDA cores, but they number on the low end of the scale don't stick with the (DX)-64-CUDA version... Try the other versions located in either the start menu or the actual program file.
Thank you once again and have a great day everyone!
McGyver's post in How do I activate the spheres in the voxel room? was marked as the answer