I have had a problem for some time now with WMP9 and streaming video. the problem is with all formats EXCEPT .asf and .wmv. those two work fine, all others crash WMP9 with an "unknown error". After this had happened a few times I decided to send an error report on it to see if it might find a fix. It came up witth an article that said I needed to update my copy of MPEG Encoder. I do not have that application(yes it was refering to an application, had a link for me to dl it) I did at one time attempt to install Adobe Premiere but it did not install correctly and I uninstalled it. it included a version of MPEG Encoder in it, so gave that app a shot, it did not fix the problem. I can play all media formats if they are on my machine. I can also stream these files using Quicktime or RealOne(but I don't like those apps) The problem also seems to occur in K++(Kazaa) If I try to preview any video types other than wmv or asf, I get the same error as when streaming. As I said, this has been going on for a while now, I've looked around, asked around and searched old threads here. I can come up with nothing and no one seems to want to help me other than suggesting a format. I do not subscribe to the theory that a format is a fix for anything, so that is not an option. I need to fix this, it has gone from being a slight annoyance, to being a huge headache.