Hippy,One simplistic view is, COUNT will count the number of low-to-high transitions of a signal during the time period specified.
I presume you are counting on one PICAXE a signal put out from another PICAXE using PWMOUT. Getting half the count of the frequency suggests not counting for a full second or an operating speed mismatch of PICAXE, say the PICAXE doing PWMOUT at 4MHz, that counting at 8MHz.
I've noted that down, sir! And I promise not to ask any questions between 2and 6:30 am.Remember to treble-check before your next post