I have the same issue but it doesn't recognize it at all; and when I find it in the memory section; it says not installed even though its there, I tried restarting my phone, wiping and reloading, tried taking it out putting it back in when its on and when its off; I really don't want to go buy another...
![Sad](http://forum.ppcgeeks.com/images/smilies/icon_sad.gif)
I even tried using a different disk; even though it was working...