Aborted by the software in your host machine.

Ok here's the deal. I've been d/l from this one particular server for almost a year now. I never had any problems what so ever with this program and connecting to it and all of the the sudden one day this message pops up...

-An established connection was aborted by the software in your host machine.Connection closed.

What does this mean. I can't figure it out. Some serious help is needed here, for this site is very very important to me and a few other people that rely on me to pass the information from this server to them.
THanks,
Thom

I figured it out. Funny how a lot of people don't know how easy this is to fix. Didn't take very long to figure out once I got a little daring to play with the settings mode.
Later all.