I've been having some problems with my Nexus One's touchscreen... but only sometimes. A couple of times, when I unlock my phone to respond to a text, the keyboard will not respond to touch unless I touch above it. Going to the home screen fixes this. Also, the phone is very slow sometimes when I unlock it, causing everything to freeze up. I put a video on YouTube to show what happens: YouTube - Nexus One touchscreen problems... Why is this happening?