[ubuntu] Wireless works until next restart ONLY

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http://ubuntuforums.org – I have an Acer emachines E725 and have installed Ubuntu 12.04 using wubi. Initially there was no wireless but I installed the "Additional Drivers" program and installed the Broadcom STA wireless driver. When I install/enable the driver, the wireless device works well. But if I shut the computer down or restart it, it will deactivate automatically. Then, after the computer is back on, I need to go deactivate it/remove it from the Additional Drivers window and reactivate/enable it again for it to start working again. Any ideas? Thanks. (Hardware)