Silly question but has she switched the wireless off by mistake? Most laptops have a switch on the front so that you can turn off the wireless signal - it's partly an FAA regulation so that you can use a laptop when flying. The switch on my Toshiba and my daughter's HP is at the front - just a little slide switch - but also has an orange LED to one side to show that it is switched on.
no need for a wireless dongle the laptop in queston does indeed have a wireless lan card inside. might be a simple case of the wireless being truned off tell your daughter to look for the Fn key and the key with the wireless symbol on it (satalite or what looks like a signel bar) also tell her to refresh her network as it may not dedect the wireless network in the vasinity until this has been done. if the wireless network is a free local one the she should ask the person in charge to set up her laptop to detect it properley as they might use a on site/council proxy to conect to the internet this is all the help i can offer without more info I'm affraid
the DELL INSPIRON 510M does not have a network card bythe look of it, whatlaptop give this info PROCESSOR: INTEL PENTIUM M 1.7GHZ MEMORY: 512MB DDR SDRAM HARD DRIVE: HITACHI 60GB SCREEN SIZE AND TYPE: 15-INCH TFT DISPLAY RESOLUTION: 1400 X 1050 PIXELS GRAPHICS CARD: INTEL 855GM DIMENSIONS: 333 X 274 X 42mm WEIGHT: 2.8KG PC CARDS (TYPE II/III): 1/0 WIRELESS LAN: 802.11A/G ETHERNET: YES MODEM: YES USB PORTS: 2 USB 2.0 FIREWIRE: 1 so i think its the small hardware card attachement that goes onto the motherboard. not a PCMCIA
so i gather however a lot of wireless networks are set up to work with certan computers hence the use of the proxy, because of this fact its worth getteng your daughter to ask who ever set it up also anyone thats into IT will put a password onto their wireless network to stop people from gaing access that souldn't have access to it in the first place so she might need to get a network key anyway to get it working. on a side note the person who set up the wireless network will know what he/she is doing so allways consolt them first if proplems arise.