so, you've had two flats in two days? I assume this is true because of your previous thread.

sounds you're not pumping to a high enough psi (pinch flat) or something is popping your tube...I'd get that taken care of before riding again.

check your rim for any sharp edges or extruding spokes. I'd even replace the rim tape from the stock plastic stuff to velox, if you're getting mysterious punctures that are not caused by road debris.