Just installed my 12.04 and had restored backup from the 12.04 beta-2 version i was using previously. now my modem is not been detected by ubuntu. Previously it was never a problem(till 11.10). tried to use a third party software "sakis3G". it also didn't worked out(segmentation fault and core dumped). in the beta-2 also, it had problems sometimes but "sakis3G" would have connected to the internet easily. Now it's not working. Please Help!!!