Ok, so I recently ran out of hack space on my old 2gb SD card, (my game's almost unrecognizable. XD) so after reading Riivolution was compatible with SDHC I broke out my old 8gb card, (overkill perhaps, but there was a time I thought 2gb was overkill too, lol). Anyway, when I launch via Riivolution it just freezes on a black screen.

I can confirm that it's not a card or filesystem issue, as it will run perfectly fine, (albeit VERY slowly loading) if I plug my SD - USB adapter into the back of the console and load the hacks that way.

I'm running a 4.2 Wii also so there's no issue there, I can get other things to work via SDHC, just not this. Any suggestions?