Ok, I have a Dell Axim x50v and the screen is fine, no cracks, but when touching it the sensor or whatever is not working right. For example, if I open a note and draw straight horizontal lines they will not appear like ___________. Instead they will appear more like a heart-beat monitor and go as far as an inch up or down from the point I'm touching. It is extremely hard to do anything when you don't know where you are clicking. The warranty expired in 2005. I've seen LCD and digitizers on eBay anywhere from $30-$150. Does anyone have any experience with this? What do I need to buy? Is it hard to replace myself? Thanks.