Am currently using the Paradigm 515 pump. Have been using Paradigms since they were first introduced in 2002. Since 2003 I have had problems with the pumps cracking in all corners of the front screen and also the resevoir screen. This is my 10th pump since then and they have all been replaced by Medtronic but they keep telling me that no one else has this problem. I have a hard time believing this since they keep replacing them. Pumps have never been dropped but continue to start cracking within weeks. My current pump I have had since November of 2007 and cracks started in January of 2008. Have just watched them get worse and worse and they now look like the pump is going to start shattering. I have never let the cracks go this far but I am sure that they will not replace this one since my warranty has expired. Am considering the Animas Ping currently since I do not want to deal with Medtronic pumps since they continue to do this cracking. Anyone else having a problem like this with cracks????????