Cursor positon in Timeline

Hi all
Can anyone help? I have been using Audacity for years but today I hit a snag,
when I set an in point in the time line the cursor will only go to positions on whole seconds in the timeline.
Previously I could “Creep” the cursor to the right position using L and R keys,
What have I done wrong

Happily using Ver 2.4.41 (until today)

You have probably turned on Snap-to on - so un-check it to turn it off

Peter