Hmm, I don't think it's a virus. My N900 has been a pain in the-charging-*** since day 1. 50% of the times I plug it to AC/Car charger it won't recognize it. USB works all the time. It killed 3 chargers. 1. Original 110V from USA 2. Original 220V bought in Israel for Nokia with 1mAH or something like that 3. Some car charger unbranded. Anyway, I'll be happy to assist in anyway. Cheers, Eitam. PS, saw your PM, just answered.