I am searching for advice about how to troubleshoot Canon's DPP imaging software, which I have come to prefer as my favorite RAW processor for 5D files. DPP routinely freezes and then kicks me out whenever I open a new folder of RAW images. Whenever I begin to open a file and watch the thumbnail images start to load on the monitor, an error window suddenly pops open and says something like "Microsoft has encountered a program and needs to close". The program never occurred when I first started to learn DPP months ago, but now it occurs so frequently that I cannot use DPP at all with newer RAW images. I can usually open up older JPEG image folders and review or edit them, but even then, DPP sometimes crashes in the middle of a work flow. I have reinstalled the latest version of DPP (version 3.5.1) more than once, and also called Canon customer service several times, with no assistance rendered. Nothing works. My review of this problem in the archives of Photo.net, FLickr and other forums gives very little direction, and virtually all of the archived discussions talks about DPP crashing on Apple systems. I can find nothing about Windows being affected, though that is my problem. My computer, which runs on Windows XP, has been thoroughly checked for registry errors, viruses, malware, etc., and all is clean. My computer has 2 gig of RAM memory running and plenty of remaining hard drive capacity. The start-up menu has also been cleared of all unnecessary applications that might task the processor of RAM memory. I even turn off my Trend Micro virus/internet security program when I try to use DPP. Before I completely give up on DPP, I hope to receive any guidance about how to fix the problem. Thanks in advance for any advice.