Not yet....
I haven't seen that one yet but there was one in ebay who advertised that he could fix your mpem's problem, if it were blowing the 5 amp fuse. He said he'd give you your money back if he couldn't. Now, he's a member in the forum. So, you may trust some on ebay.
Be careful, look at his reputation and feed back. Usually, these fixes are from some type electrical repair shop, who has tinkered with them and found an in-expensive way of fixing them. But, keep your guard up. Always be weary if they dont' have some kind of guarantee or DOA statement. As long as they guarantee it, you can use the ebay staff for arbitration if necessary.