You can think all you like. But several people who chat with me have all had the same problem since upgrading, and I'm not the only person to have posted here with this problem. Nothing else on my PC - software, usage, anything at all - changed apart from the upgrade from 6.11 to 6.12.

If you put the same effort into trying to help people as you do into being sarcastic, you might actually serve a useful purpose around here.