My A500 would take forever to lock on sats and I could not navigate with it. Acer said send it in and they would repair under warranty. Thinking it was firmware or something I asked why can't they just push the software to me. The rep says they will be putting some part in or replacing something as well as software. This is all very interesting. It seems to be a tacit admission that something is definitely wrong with some of the A500's and they need to replace hardware. Oh well, at least I don't have to pay to have it shipped back to me.