I have a friend that is using DirectTV's satellite data service for Internet access. He can't get any high speed access where he lives short of a T1. For $60 a month, you can't beat it if you can't get DSL or Cable. He has been having problems since it was installed. We've logged many hours with tech support and have even had the local installation company out to realign the dish.
One of his kids shut down the AOL client the other night. He got on to look at the news and it was amazingly fast. He then realized he wasn't accessing CNN through AOL. He launched AOL and things slowed back down. I never stopped to ask him "how" he was accessing the Internet. The moral of the story is: Don't use AOL over a satellite uplink. There has to be some funny business going on between the AOL protocols and satellite communications protocols.