When I download and open tinyumbrella it opens with an error message which says Host are not writable. A while back I messed up my host file so I searched online and found a "Host file fix" from Microsoft, that from what I understood put the host file back to default. I can restore with Apple fine during the signing procedure but not sure if I wanted to downgrade my firmware via Cydia I'd be able to now due to the fact I can't alter my host file. Which I'm pretty sure also means TU can't alter the host file either. I've attached a picture of the error message for all to view. Does anyone have any clue as to how I can fix this issue? Any help or advice would be greatly appreciated. Thanks in advance. PS...and then when I go into Note pad as Admin and try to open the host file to see if I can rewrite it...I get the second error message saying to check the spelling and try again. Any help guys??