Please test it, but i have bad experience of OpenGL on laptops, the gpu's are often some odd variant of the normal cards with lacking driver support.
Found a small bug in the imageclass, for some reason i have switched place of the parameters in some functions, ie drawAdd:
Procedure DrawAdd(X,Y,Alpha);
Procedure DrawAdd(X,Y,PatternIndex, Alpha);
Should really be
Procedure DrawAdd(X,Y,Alpha);
Procedure DrawAdd(X,Y, Alpha, PatternIndex);
for consistency across the board.
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