I've searched for this problem, but haven't seen it anywhere (or maybe just bad at searching). My rooted EVO 4g (stock ROM) has begun automatically turning on wifi, even when there's a strong 3g signal. It never did this before - I needed to manually turn on wifi. And that's how I like it. I rooted several months ago with no problem, so don't think it's related to the rooting. Oddly, it only seems to only happen when I'm in a moving vehicle. It's almost as if the wifi network is pushing itself onto the EVO. I can be reading a forum page in the browser (completely loaded, no activity needed) and suddenly it will switch over to wifi from a solid 3g signal. It doesn't do this at home (where there is a wifi network). I've deleted all the remembered wifi networks (except my home network) and it still happens. It's only been happening the past couple of weeks. So, I've frozen (with Titanium Backup) all of the apps I've installed since then (some of them, I just deleted since they weren't being used). But the problem persists. Before doing a wipe/reinstall, I thought I'd check and see if anyone has any ideas on what might be causing this. Apps I've installed (and frozen or deleted) in the past couple of weeks: Doggcatcher (frozen) Adobe Reader and Adobe Flash Player (frozen) Tune-in Radio Pro (frozen) Several live wallpapers from the Market (deleted) Wave Launcher (deleted) Flex T9 keyboard (deleted) All of them (including the wallpapers) were via either the Android Market or Amazon's market and were all highly-rated with many (over 1,000) good reviews. So I don't think it's malware, but I'm not positive. Any thoughts/ideas on tracking this down further? Thanks.