I have the same pb.
freezes when Enabling Wireless
Acer Aspire 7250 AMD Dual-Core-Processor E300 17.3 " HD + LED LCD AMD Radeon HD 6310 8 GB DDR3 Memory 500 GB HDD DVD-Super Multi DL drive Acer Nplify 802.11 b/g/n 6-cell Li-ion battery
Running 64 bit Ubuntu 12.04.
I have the same pb.
freezes when Enabling Wireless
Acer Aspire 7250
AMD Dual-Core-Processor E300
17.3 " HD + LED LCD
AMD Radeon HD 6310
8 GB DDR3 Memory
500 GB HDD
DVD-Super Multi DL drive
Acer Nplify 802.11 b/g/n
6-cell Li-ion battery
Running 64 bit Ubuntu 12.04.