I just bought the Gainward GF4 PowerPack! ultra/650xp with VIVO. I am really excited about finally having video in, but I'm having a problem. Every video that I encode doesn't run in Windows XP. When I open the file I get that annoying window that says an error has occured and asks whether I want to report it to Microsoft. I don't know what the problem is... I've tried reinstalling WinCoder, the WDM and the regular video drivers. I can't seem to find any setting in the properties of WinCoder to change. One weird thing though... I can open and play the video files in WinProducer. I've also tried re-encoding the files to another video format in WinProducer, but I still get the same error. Any suggestions??? Please help me out!!