Hi, I have had this One 150 since mid September. I upgraded the pre-installed Windows XP to Windows Vista Ultimate (SP1) almost from the get-go. I have never had *ANY* problems with it, until ... until 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. From the moment I flashed the following started happening: - wireless connection to my router randomly drops, sometimes reconnects, at other times, atheros device vanishes! - when the atheros device vanishes, the wireless light stays lit. Sometimes a reboot fixes it, other times, a shutdown (power cycle) is necessary My 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). I 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...? After 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. Is there a way to revert to BIOS v0.3301 ??? Why isn't there a roll-back feature like there is for Windows ???