>Currently using MSGraph but run into problems: different versions of MSGraph cause graphs from my app not to work. Saw an ad for Graphics Server (Hallogram). Want a graph package to be just for my app so it is not affected by other apps loaded onto the machine. Any thoughts?

I've used Graphics Server (2 years ago) and was pleased with it. It offered printing flexibility (at the time) that other graphing solutions didn't, albeit at a price.