Why doesn't this compile in 1.22?

Of course that could be compacted to be more effecient, and in my opinion readable.

For instance this section:

			If x < 0-w2 Then Return 1
			ElseIf x > screenwidth + w2 Then Return 1
			If y < 0-h2 Then Return 1
			ElseIf y > screenheight + h2 Then Return 1
			Return 0 'OK	

Could be:

Return (x<-w2) Or (x>screenwidth+w2) Or (y<-h2) Or (y>screenheight+h2)

And even better would probably be to replace it with a RectsOverlap (or similar) function, if you use it several times.