Fixing promox lockups

My proxmox 6 test install locked up every day or two. Here is the fix. This in particular seems to apply to common hardware on Hetzner servers. In /etc/default/grub, update this line : Reboot and you should find your server stable. Read more on the proxmox forum at

Does the Yamaha DX100 send program change commands?

The manual for the DX100 says it sends program changes yet mine refused to do so. Here is how to make the DX100 send program changes. To send program changes you must have “ch info” set to on (as the manual says). What the manual does not mention is that “sys info” must be set […]

Fixing Apple Mail ( / mac mail) “cannot verify username or password”

Every version of mac mail seems to have new ways to make the setup and configuration of pop3 mail not work. Today I ran into a new problem and solution. This particular fix is for accounts that are set up and working but will not save changes made to the configuration after the initial setup. […]