People that are still in the "Newbie Slap" as we call it can't use the source box for their code. Always use code snips (even after you're out of the Newbie Slap).
[ code ]
Your code here.
[ /code ]
Just remove the spaces between the brackets and we see this:
The syntax for the circle command is "circle x coordinate, y coordinate, radius". If it's always in the lower right it's doing "circle 640,480,radius". Put the same command to pick a random number there "circle rnd(640),rnd(480),radius" or use variables.
randomize timer()
do
` Random Color
ink rgb(rnd(255),rnd(255),rnd(255)),0
` Pick a random location and size for the circle
x=rnd(640)
y=rnd(480)
radius=rnd(20)
` Draw the circle
circle x,y,radius
loop