Symptom - when Object Snaps (Osnaps) are on and you hover near a snap point, the display should indicate which snap is active (with a word like End or Cen in a little box near the cursor). In certain installations, this tooltip is distorted or unreadable.

Fix - Right click on the desktop, choose Properties, go to the Settings tab, click the Advanced button, go to the Troubleshoot tab and move the little slider one or two clicks to the left. The problem should go away.

This has to do with the graphics card, drivers used, and your OpenGL settings. It generally only happens when using hardware accelerated OpenGL. Moving the slider to the left one or two clicks removes the mouse cursor acceleration, but not the rest of the hardware acceleration.

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Moving the slider to the left one or two clicks

removes the mouse cursor acceleration,

but not the rest of the hardware acceleration.