Hi Saurav <div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div> Thanks for all your support. But the problem is I have got Reliance Broadband Netconnect+ HUAWEI EC168C data card (usb) and it is not working in my KUBUNTU 9.10 KARMIC . In windows it gets automatally detected but here it is automatically detected as a CD rom. How can i install it in my KUBUNTU 9.10 ?? </div></blockquote><div> When it is detected as CD-ROM, reboot the computer, and then check if it is still detected as a CD, if it does, again reboot. After that you might have to run sudo modprobe usbserial product=productid vendor=vendorid then check if /dev/ttyUSB0 and /dev/ttyUSB1 exist or not; And then run sudo wvdialconf </div></div> then add the correct phone number, username and password in /etc/wvdial.conf and check if a line like Stupid Mode = 1 exists in /etc/wvdial.conf. If all this works out properly, then try sudo wvdial and this should connect you to internet. There is apparently another way of doing this using the Netowrk Manager, which I have never used, but on the face of it, it does look simple. Moz