Thanks for the quick response. It's occurred on all versions of Start 11. I'm currently on the latest version. It has also done this on all versions of Windows 11 over the last 12 months, and I keep the OS updated regularly.

I've not yet tried the default buttons, as I have used this 'Windows 7' button for years with all previous versions of Start menu (before upgrading to Start11) and it's worked 100% of the time.

I will give it a go with the default buttons and see what happens. It would be a shame if we can no longer use alternative buttons. The thing that surprises me is that it's not always out of position. Sometimes I can reboot and it snaps back into the middle again.

I even tried changing the scale of Windows 11 from the default of 150% to 100% to see if it would jump back to the middle, but it's even worse. Having used this software since it came out years ago with no issues, it's so bizarre to see something like this that I can't get rid of. It's aesthetically unappealing. I await suggestions to help resolve this before contacting support for a refund. Thanks.

No Neil. It is a Samsung 32 inch 4k monitor. I used it as an external monitor to my gaming laptop.

Thanks, I'll give it a go 👍