I realize that you took a lot of time to explain this to me, and I really appreciate it.
No problem. I figure I ask questions that take other people time to respond to, and I've gotten a lot out of such things in the short time I've been here, so it's only fair to be willing to do the same for others when they are after knowledge I already have. Otherwise I'd feel like a freeloader. (Besides, it makes my day when someone tells me something I posted was actually useful.)