I think I have a similar issue with 1 of my dstt's. I bought 3 of them. 2 work great. 3rd one is causing me troubles. At first it didn't work, so I tried the paper trick and had success. Now I get the ttmenu.sys error. Have used different card readers, different cards, ran flashwriter using one of the other cards, put on the non-fake killer firmware, all with no luck. I did confirm visually that my card is real even though I cant get the fake checker to work. I'm leaning towards just plain bad dstt. It will boot up but just won't run anything. I even tried ysmenu. It booted up, but game the same ttmenu.sys error when trying to start something. I think the DSTT QC is less than stellar, but I didn't expect much for 6.50. I'll have to see if DX will send me a replacement I guess.