Have you tried nail polish remover? Depending on the size of the paint spot ( spot or entire floor) nail polish remover works well for small spots on the floor. For entire floors, you got me..I always ran a stiff, upright, floor sander with heavy grade sand paper.
Thanks for the idea. There is a lot of it, so off to buy a can of acetone. Thanks bunches!
Ventilate with fans very well when using..read and follow all precautions on the can!! REMEMBER this stuff is HIGHLY flammable and should not be breathed in an unventilated area!