HI, here a simple code about the trouble what I was commented.
SETSCREEN 320,240, TRUE
SETCURRENTDIR("Media") // seperate media and binaries?
LOADSPRITE "bkg1_01.png",1 //note bkg are 1800PX but in other version GP2X accepts to 3600px, not is problem about measure of bkg
LOADSPRITE "bkg1_02.png",2 //note bkg are 1800PX
WHILE TRUE
a=a+3
DRAWSPRITE 1,0-a,0
DRAWSPRITE 1,1800-a,0
SHOWSCREEN
WEND
I tried some codes and always occurs the same, every 3 or 4 seconds (approx), a little stop on screen.
I make probes with other versions and this same code go well, I think is trouble of the last Version, perhaps a litle imcopatibilty with the last firmware.
The probe has under win and under Virtual Box, and the result at the same.
About the size of bkg... I make other probe only with a one graphic(too much little, about 80x80 px) and the same problems occcurs.