Dell inspiron 1150 network cable unpluged.

Go into your device manager and disable the device, and then reboot. That may give the device a chance to reset itself through windows

SSID: Service Set Identifier
It is the name of the Wireless connection,
Seems ur trying to connect to internet using WIFI and not a cable.
Then in this case u need to set up ur wireless connection
Check this link to connect to wireless
http://www.microsoft.com/windowsxp/using/networking/setup/wireless.mspx

Make sure you are connecting to your own internet connection through your wireless router and not on your neighbor's.....limited connectivity means you are out of reach or signal is blocked....

my lapto problem is network adapter and wifi and vga drive pleas help me iam living in iraq

remove & reinstall your wireless driver then try to connect or chak the wireless switch on from the laptop

Its like a password thats needed to connect to a wireless connection, this is only needed if you have a wireless connection

you wirless network might be protected by a WEP password which should be on the botom of the router

inspiron 1501..the DVD no play more.write

Is that an external usb nic card? you can just directly connect it to the usb port.

Do you have your computer connected to your wifi network and your ethernet cable at the same time? Try having it connected to only one and see if that changes anything (ie, keep the wireless on and unplug the cable, or keep the cable plugged in and disable the wireless - if your laptop does not have a button/switch to turn off the wireless, you can do so by going to your network connections area from the control panel, right clicking on the wireless internet icon, and selecting disable.)