If u get a error message that says 'xiao's runnable has stopped working', here is a way to solve it.
1.Close fgunz and open internet.
2.Go to fgunz.net
3.Go to download and re-download the Fgunz client. (don't erase the original file)
4.When u started downloading, start fgunz like normal. It should work now. (I work every time)
5.If download is complete, just erase downloaded file.
6.HAPPY GAME^^