Thanks for the link you suggested, hal8000.

Unfortunately, the results were sort of "I'm sorry Dave, I'm afraid I can't do that."

RE: Fonts, I changed the default for anti-aliasing from "System Settings" to "Enabled".
I don't see that choice and, as I mentioned in my original post, I already have anti-aliasing enabled.

RE: sudo dpkg-reconfigure fontconfig-config
Well, I ran that in a Konsole window (I'm obviously running KDE). I wasn't presented with a choice when I got to "the last question, I say NO to Bitmapped font support." Since all I was presented with was an OK button, I just closed the Konsole window because I couldn't say NO. There may have been more after the Bitmapped font support; I don't know.

It seems that the 5.1.1 I'm running from a CD iso works differently than the 5.3.1 on the DVD iso. I'm going to download the DVD iso this weekend.

I now think my problem with fuzzy fonts is that I can't get into the native resolution on my LCD display, viz. 1280x800. When I try the "Display" settings under Control Center/Peripherals, I'm not presented with a choice bigger than 1024x768. Using the cheat code Knoppix "screen=1280x800" doesn't work.

After I get the DVD iso running, I'll have man and other help available, so maybe I'll find something to read that'll tell me how to set my screen to 1280x800.

I haven't looked at the Tips on the forum yet. I've found that searching forums usually yields in excess of 99% irrelevant posts.