Well, although I'd assumed that since the only place where the problems occurred was on the Axiom forum(I had no problem with test posts on other forums and I "bought" 7 M80s at the Axiom store)that it was entirely an Axiom forum glitch rather than anything related to my computer. Nevertheless, I ran System Restore to kick back a couple weeks and also ran Malwarebytes, which turned up two viruses I deleted.

Now I'm not sure if either of these was the entire solution(everything appears normal now)or if a change in the forum happened to have occurred almost simultaneously. Why I mention this is that you might try similar measures.

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Enjoy the music, not the equipment.