okay this has been bugging me forever now. well for the past 2 weeks. 2 weeks ago i got my d40 and i love that thing to death. my 2 questions come as the following: 1. i have a makeshift studio in my room (white backdrop, ambient lighting, etc) and when i want to take a pic, i gotta put the self timer on since im taking a pic of myself. when i do that, the camera keeps trying to autofocus on the white backdrop and it wont 'lock' onto a focus point, it just keeps making that whirring sound. how do i set the timer on it, jump in front of the drop, and take a pic of myself? i know i can go get a remote but i just spent $850 for all my stuff so im strapped for cash. 2. in regards to shooting stars at night im having a similar problem. i tried using the 55-200vr lens for that and yet again the lens has a hard time autofocusing. it just keeps trying to search for something to lock onto. what am i doing wrong here?