Problems with CycloDS & Kingston 8gb MicroSDHC?

Hi all,
I have been having an issue with my CycloDS with an 8gb Kingston (Class 4) memory card. I can copy the roms over just fine, but whenever I go over 4.78GB on the card, the roms do not show up on my DS. The DS still works, but I can't see any of the new games that I have added. ??? ??? As long as I have less than that amount on there I can see all the games.
First thing that I did was reformat the MicroSD to no avail~ same issue. So I purchased an identical 8GB Kingston from a different source (1 directly from Kingston & 1 from Amazon) & I am still having the same issue. I looked all over the boards & Team Cyclops & found nothing pertaining to my issue. I would have asked my question there, but there registration has been disabled :-[ :-[
I am not sure what to do at this point. Any constructive input is Greatly appreciated.Thanks so much

It probably doesn't support 8gb properly, there has been issues with flashcarts and 8Gb cards before...

Probably something to do with the firmware or a problem with loading too much data in a card.

I actually have that exact same setup, and my card is at 7gb with not a single problem.