So this is a new thing I've never seen before. My personal gmail has my, so far so good. My display name is again, Firstname Lastname. Excellent. I email people and this all looks good. Then when I get deep into a reply-reply email chain (like, 6 deep maybe?) Gmail changes my last name! I'm no longer Firstname Lastname, I'm Firstname Laskdjgfhr!

I know screenshots would be helpful, but names and what not. Bah. I don't understand why Gmail is doing this! I double-checked my settings and it has my name there, all good and properly spelled and stuff.

Help, please!

Okay, I tried a screenshot of sorts: