KRYPTON 17.1

I have a ol MX2 ( I know piece of crap matricom ) and I had 17.0 on it and deleted it for 17.1 and know get parsing errors no matter how I try to load it. I know it was a pain getting it on but have fergots how the heck I did it. Any thoughts? And no not smash the box. Its one of my old ones and was running 17.0 find. Errrrr