snplw-
It sort of sounds as if you're not getting the correct database information for some reason:
In Sentinel, when you drill down from Database, to USA, to New York, to Cortland, to County Systems..... do you see "Cortland County Public Safety" listed there along with "Cortland, Transportation, and NYSEG" groups? That group "Cortland County Public Safety" is essentially the new system information.... you need that in the Home Patrol.
I'd be glad to help out if you'd care to meet up someplace. I don't have internet at home, so I'm in town on WiFi a LOT.... and do the Home Patrol updates and whatnot right in town, at a public WiFi spot.
It'd be much easier helping in person: I've been into scanners for a long time, but I am VERY NEW to Trunking, and VERY NEW to the Home Patrol and Sentinel software..... so it's difficult to talk like I know what I'm doing... because I'm so new to it.
Meet at McDonald's in Riverside plaza sometime? (I'm from McGraw / Solon area, by the way...)
Joe WA2NGX