Well....all I wanted to inform you about is that, on satsw.net as well as satdw.com, both for 650 and 550, you find firmware Super & Ultra. When I asked the official site of starsat about the difference, they just told me it was a s/w difference....
Now, I have been warned that the Ultra version may cause problems to the receiver....I have never used it for my 650, always used the Super, and I have never had any problem
Probably, you loaded the Ultra version to your Super decoder....
If this is the case, try and load the Super version again....