Alright, so I'm a total noob to using adb. After reading the threads by jcase and krystal1985, I decided to try to root my ST Merit. After getting an "adb is not a recognized command" in cmd for a couple of days, I uninstalled it and moved on to other things. Well here I am about a month later, reinstalled adb to a different folder and for whatever reason, adb now works. Kinda. I'm plugged in usb, debugging enabled, unknown sources checked, and I'm getting the message found in this thread title. I can browse the phone and my sd card through windows, and typing "adb" into cmd gives me the help menu, which I'm taking as a good sign. Based on the fact that explorer can see the phone, I'm guessing it's not my usb cord. I'm doubting it's the driver either; adb downloaded the google usb drivers, and I've checked hardware manager for any problems but there's nothing there. I've tried restarting my phone while it's plugged in, disabling and enabling debug while plugged in, plugging in with debug enabled... I don't know what else to do, short of restoring to factory, which I'm not even sure would help. Can anybody help me here please?