SD card issues with Rhino

I’m having an issue with the following exception:

[quote]
#### Exception System.Exception - 0xffffffff (1) ####
#### Message:
#### GHIElectronics.NETMF.IO.PersistentStorage::.ctor [IP: 0000] ####
#### ChrisSeto.Rwar.Program::Main [IP: 00e2] ####
A first chance exception of type ‘System.Exception’ occurred in GHIElectronics.NETMF.IO.dll
An unhandled exception of type ‘System.Exception’ occurred in GHIElectronics.NETMF.IO.dll[/quote]

PersistentStorage pStore = new PersistentStorage("SD");

This is code that works flawlessly on my Domino. I have tried 2 separate SD cards, with the same results. Cards are formatted as FAT32.

Try a power supply.

Already did. USB and a 5V SMPS.