Thank you for your reply. Yes sir, I tried unclicking all boxes, to no success.
When I first tried using Audio Cleaning Lab software (of course not reading any tutorials) the only input that I could get to work was the Mic. I was never able to get Line-in input to work. I have recently discovered that I was using the wrong 1/8 adapter - mono, not stereo. Maybe that was my problem, maybe not.
I have also found out recently that you have to go somewhere into windows (Control Panel ?) to turn the Line-in on. Default setting is Mic. Once I get the correct stereo line (adapter) to hook up Hi-Fi system to computer, I think I will be in business. Worse case scenario - hire computer tech to remotely correct computer setting for optimal recording ability.
For anyone that is also interested in converting LP records to CDs - I have found that almost every soundcard installed in computers DO HAVE capability of recording stereo conversions to CD. You have to have the 1/8 stereo plug to do this. (the difference - mono plug will have one band on plug; stereo will have two).