First make sure you have the Vista compatible driver installation files available.  Then, boot into Safe Mode, go into Device Manager and uninstall the wireless network adapter.  Reboot into Normal Mode, cancel the New Hardware Wizard (if it starts), then run the driver installation file to reinstall the network adapter.  Let us know if this fixes the problem.

Steve

# It dint work.Still it has network adapters

1) broadcom 440x10/100 Intergarated adapter

2) intel Pro/wireless 3945BG network connection

# i found another thing,

   when i do ipconfig in cmd prompt, it says media disconnected for all connections.

Please let me know wht i can do to resolve it.

i went to a Laptop repair center yesturday, even they can not fix it.

They said system has to be reformated. Tht's wht i dont want to do .

I live in Fortlauderdale (FL), is there any Dell service center or any other vendor

who can fix this problem.

I appreciate your help in this regard

Thanks

-Shaival

Try the following.  Go to the Intel web site and get the latest drivers for the Intel 3945 wireless adapter.   Then follow the procedure I outlined in my previous post to remove the existing drivers.   The reboot into Safe Mode and install the drivers while in Safe Mode.  Then reboot to Normal mode and see if it works.

Steve

 Could this be a problem with my Wireless mini-card (hardware).How can i test its working fine ?

Yes, it could be a problem with the hardware, but we are troubleshooting to try to eliminate all other possibilites first. 

Steve

  I have tried all other things. like installing latest Driver etc.

  As per one of the message in this Forum.I got this image

  http://img157.imageshack.us/img157/4407/resizeofbiosvr6.jpg

 http://www.dellcommunity.com/supportforums/board/message? board.id=si_wireless&thread.id=30911&view=by_date_ascending&page=2

 so i checked my Device properties as well it also shows 'none' for WiFi.

 Does it make shows, its the hardware problem ?

 what can i do for it ?

In the BIOS setup program you need to look under Onboard Devices and make sure that the MiniPCI slot is enabled.   The link you posted to another message, doesn't work - it just takes me to the forum home page.

Steve

under OnBoard devices,i found

 1) Integrated NIC : Enabled and Enabled w/PXE

 2) Internal Modem : Enabled

 3) Media Card and 1394 : Enabled

 Is it working fine ?

The slot is enabled, so the device should be working.  If you are still getting the message when you try to install drivers, then it appears that your wireless network adapter has a problem.   If you are still under warranty, you should call tech support for service.

Steve

 Steve,

   Thanks it got resolved. Issue was : wireless MiniPC card connections were loose.After cleaning and

reslotting it. It worked fine.

Thanks for your Help and Support.

-Shaival

Good work.  Glad you got it solved.

Steve