I have been trying to find a fix to this issue for a few days now and am having no luck. I am currently running OSX with DellEFI 1.2e5 and have been trying to get my 32Gb SDHC card to work. It is a cheap ebay card that I bought a couple of months ago for my car, but never used. I have used it in my desktop and my other XP laptop and it works fine, but not in the mini 9. I was able to fix the desktop freeze when I inserted the card by upgrading to the new DellEFI, but now it will not boot with the card in the computer and I can not find the card anywhere when the computer is booted and I insert the card into the slot. I have heard of other people running the 32GB cards and I know that mine works, I just can not figure out how to get it to work on the mini. Also, I swapped the mini as soon as I got it and did not check it with xp. I will take any and all suggestions as I am kinda at a lost cause. Thanks for everything in advance and if you need more information please let me know.