Cant teleport , hear sound , save notecards or scripts, or other things PLEASE HELP!

Okay first of all I think ive got to be having more SL problems at one time than I can imagine anyone having. Must be something new. But all of the sudden a few days ago I realized i could not teleport and when I would try it would log me off. I thought this was due to Cache or something Im wearing but no. I detached all and tried and nothing, I Cleared Cache and nothing still. Then I notice I couldnt hear any sound at all. Checked settings and preferences and there is no logical explination. I uninstalled SL and it's files and redownloaded several viewers (EVEN an all text viewer) and couldnt even Teleport on the Text viewer. Even tried using a friends account. So can someone please please tell me how I could fix this? It's my RL b-day tomorrow and would love to have things back to normal by the time I get back so I can begin my memership upgrade and start a business. Been building while Ive been having these probs so Im ready to open store but impossible like this. My computer is an Acer Aspire 5630 Laptop and been using my neighbors wireless connection past couple months. But have my own broadband service too. WOuld greatly appriciate some help in this area. Thanks CB

Sounds like a connection problem. Stop stealing your neighbors internet.