#2 Open canvas fails for certain arbitrary dimensions

[Mark Tully]

From Jacob on the forums:
http://www.tntbasic.com/community/forums/showthread.php?
threadid=1155

How come this works...
Open Canvas 1, 5000*32, 576

...and this doesn't...
Open Canvas 1, 4000*32, 576

Seems strange to me.