Hi,\n\nI have had this One 150 since mid September. I upgraded the pre-installed Windows XP to Windows Vista Ultimate (SP1)\nalmost from the get-go. I have never had *ANY* problems with it, until ...\nuntil I decided to change the BIOS software version from 3301 to 3308. I had changed nothing else. Just flashed the bios with the newer version. The reason being, I am ordering a bigger battery, and a newer bios supposedly knows more batteries.\nFrom the moment I flashed the following started happening:\n- wireless connection to my router randomly drops, sometimes reconnects, at other times, atheros device vanishes!\n- when the atheros device vanishes, the wireless light stays lit. Sometimes a reboot fixes it, other times, a shutdown (power cycle) is necessary\n\nMy router is the Netgear WPN824 (G+ MIMO) version 3. There are four other computers in the house with different wifi chips and none have this kind of problem. Up until a few days ago (when I flashed the One from 3301 to 3305) this One 150 didn't either. I have been using the driver supplied by Windows Update (driver by Microsoft). \n\nI have tried changing BIOS versions to no avail (without changing the wireless driver). Tried 3304, 3305, 3308, 3114. I haven't tried 3309 yet at all. Should I...?\n\nAfter I had tried the different BIOS versions, I tried changing the wireless driver. So instead of the Microsoft driver, I installed .149 - the difference is that I can usually use the wireless for longer, but it breaks eventually.\nIs there a way to revert to BIOS v0.3301 ??? Why isn't there a roll-back feature like there is for Windows ???