I guess it all depends on one's point of view. You are annoyed because your keyboard doesn't work. I'm annoyed because mine still does (work). I am hoping for something to wrong with the terrible one supplied by Acer, so that I can justify buying a good keyboard.
BTW, you should determine why your receiver (dongle) overheated. Or, just don't use that USB port.
Our friend and comrade IronFly has reached his 10,000th post to our little Community. During the last 4 years he has helped countless Acer customers providing help, advice and answers. The Acer Community team feels honored to count you as our friend. Thanks IronFly!