Hello Fred!
Thank you for your post.
The line crossing your products indicates, that their quantity value is "0" and they are out of stock.
In case the stock management is disabled (you don't use it), you can deactivate the following checkbox at the Preferences(F12) > Advanced tab > Strike out products with quantity 0 and below:
http://screencast.com/t/06DqLwTPNXz
Let us know if you have any other questions.