There is another program called Tweak XP. It has a section in it called Tricks and Tweaks and there is a menu there called System Folders. With it You can set the MyMusic folder. You should go ahead and try it, maybe it will help, but I guarantee nothing.
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You can get Tweak XP at:
http://www.totalidea.com
anyway, i figured it out a different way in the registry so now it's fixed. windows sucks though haha. thanks for helping