At this point, set it back to auto detect (undo what I said above)
and uninstall the wireless and all related software
I need to know exactly what wireless device you are using so I can point you to the most recent version of the software and driver
We're going to remove it, along with whatever settings or link libraries have gotten screwed up and reinstall it from the beginning, In order to walk you through that I'm going to need more specific information about your computer.
If the wireless is built in, just knowing the model of the computer should be enough
example: pavilion dv6000us
We should be able to get the device working like it did originally by removing it and reinstalling it.
...like I said we can't help you with that without more specific information about what we are dealing with here. If you are using a wireless card I will need that model information.
If you don't know how to provide that information. We can deal with that too, unfortunately it's about 1:30 am here right now and I need to call it a night hopefully someone else will pick this up, if not I won't be able to respond again for 8 to 12 hours.