GUI help

Blitz3D Forums/Blitz3D Beginners Area/GUI help

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Im trying to make a GUI, and I am having problems. I loaded the gui using this:
Global interface = LoadImage ("interface.bmp")


and after updating the world, rendering it I added this:
DrawImage interface,0,0
Flip


The program was running fine, but once I added the background GUI, the program has crawled to almost a hault! Why is this?