I have that freezing up thing happen too... only a few times this but very scary, I was hopeing it was just that I was stiff, went to take a step and had to grab the wall, and once toppled out the door. I thought it was because I did not watch what I was doing... thinkin I better get ahold of this clutzyness afore I do more injury to meself.. hmm thanks for the heads up Mollymcn, I will look into this further.
hugs,
sandra