Thanks for your reply, koolkat77. You brought me luck!
This morning, all my email buttons (the ones at the top of the page, not the ones referred to in the link) were all bright and shiny, and in full color. I have learned not to question the Technology Gods. There is no apparent reason for this. I had restarted my computer several times in trying to solve the problem (i.e., system restart, etc.).
I now have other issues which I'll post shortly. The WLM adventure isn't going smoothly, but I do like it so far.