Mine does the exact same thing. I have Window XP as well using MEP 17 Plus. Everytime I export as a wmp or MPEG file to either my computer or internet (youtube) it freezes right after. There is no error message, it just stops working, so I terminate the program with task manager. However when I check if the file has been exported, only like 7 seconds of that 3 minute video works. Somebody please help!