Properties bar shrank (ate magic mushrooms?) I just signed up since I'm new to Blender. Did some work in gMax.
At some point the property bar appeared tiny and hardly readable. The other bars are ok-
If I open earlier saves the bar is normal.
Thanks
TOM

enter image description here
Make sure your mouse cursor is hovering the desired editor or area, then press Numpad + or Numpad - (plus and minus sign from the numeric keyboard on the right) to zoom in or out of the interface.