I have been having a sporadic problem of not being able to slide to answer phone calls. Take yesterday for instance, I got a call come through on my phone and when I slide to answer the slider makes it about 75% of the way across then returns by itself. I tried multiple times to do it making sure I didnt slide too fast or anything like that. I even tried pressing the home button to see if that helped but it didn't. Eventually it just worked and I was able to answer the call before it hit my voice mail. Has anyone else experienced this before? It used to happen on my 3G and it now happens on my new 3GS.