I bought Minecraft right before beta came out and have been playing nothing but single player since. But recently I have been wanting to play online and can't do it. I log in just fine but whenever I try to join a server, I either load only a few chunks in the map and can't chat, place or destroy blocks, or the map just doesn't load at all and I fall into the void. I have taken my computer to other places to see if my internet was the problem but there was no change. I'm desperate for help and just want to play the game I payed $20 for. Can anyone at least give me a place to start looking for the problem?