Another issue: Changing one variable instantly changes the value of another variable

[Cobalt]

Like Steve said, watch what you do with variables passed to FUNCTIONS AND SUBs. Because you do manipulate the original values within the routine. Which if your careful can be a big and powerful feature, if your not careful it can be a living nightmare.

In QB4.5 you could do this with FUNCTIONs alone, but in QB64 it happens in both.