wireless lan not detected when using linix works when i use windows

works when using windows vista

how do i install or ditect wireless lan

No need to post 3 times !

Please indicate which wireless card is in your computer.
To find that info in Ubuntu: Open a terminal (Application > Accessories > Terminal), type "lspci | grep Wireless", press enter.
Just copy the output here.

00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8039 PCI-E Fast Ethernet Controller (rev 14)
06:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
08:03.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller
08:03.1 FireWire (IEEE 1394): Texas Instruments PCIxx12 OHCI Compliant IEEE 1394 Host Controller
08:03.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD)
x@x-laptop:~$

lets see what tricks your hardware can do. Open a terminal (like adviced in the earlier post) and type "sudo lshw -C network", press enter and give the sudo password. Then paste the output here.

//Best Regards,
Miia Ranta

The same problem has been already asked and solved here:

https://answers.launchpad.net/ubuntu/+question/34428

short answer: follow those instruction: http://ubuntuforums.org/showpost.php?p=4791500&postcount=7