Strangw results when using PWM command

[malc-c]

Now this is getting silly !

Main:
for i = 1 to 254                                             
Pwm GPIO.0,i,1
if i=253 then goto down
next i

down:
high gpio.0 
pause 1000
low gpio.0
goto main

The above test even fails... it simple runs the main loop and doesn't branch off to the down routine !


EDIT:

As does the following

Main:
for i = 1 to 254                                             
Pwm GPIO.0,i,1
if i=253 then t=1
if t=1 then goto down
next i

This is doing my head in