taskbar doesn't span entire widescreen monitor width

Looked for about 15 mins, didn't see anything close to this, but I updated Start11 this morning, and now my second display, a wide curved samsung monitor, only displays the taskbar in the middle third of the screen. The rest of the screen is usable, likely not a resolution issue because nothing changed but the update to the Start11 program, now:

26 Jun 2025
UI: 2.53
Start11Config.exe: 2.5.3.1

I have DisplayFusion as well and they worked fine until the update mentioned above. Nothing obvious in the settings for making the taskbar span the entire screen, and I've never seen it do this and have been using the wide monitor for 3 months now.

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Hello,
Sorry to hear you are having issues. Need to know, your Start11 enhance taskbar turn on or off? If it is on turn it off and test or vice versa. Try it and report back. Also, as a test, try disabling DisplayFusion, restart Explorer.exe or reboot, see if it make any difference.

Thank you.
Basj,
Stardock Community Assistant.

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It sounds like you have enabled some option somewhere to make the taskbar only appear in the middle of the ultra wide monitor or the monitor is being exposed to the OS as three different monitors and some software used to stretch the taskbar over these three.

What does display properties show?

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