Yep, the update must have something to do with the _AX_MENU.DAT! 2493 runs perfect on the n5 so i guess you can't use the N5 firmware on the R4. My N5 has run perfect since i got it, compared to my iTouch... until the 2.0 firmware, it was a piece of shit flash cart that was poorly made. Bought it for 30 when it was released, should have waited cuz now it is only 17 dollars at dealextreme. The iTouch is made out of horrible plastic and the little clips that hold it together are very flimsy. I prefer the N5 from the R4 even though people said it blew a fuse