OMG. Nevermind. Right after posting this I went in and looked at my mappings. I had selected "a" as a mapping, and AIDA64 was just doing what I asked it to.
Fixed.
As you cAn see, I Am hAving to type this without using lowercAse for the letter A. Only when AIDA64 is running do I get this bug. StArted After lAst updAte, but downgrAding to the previous version And rebooting didn't help.