Having problems with some of these RC kernels with my wife's DS. On my DS they work fine. Not sure why that would be. Both of us are using EZ-V cards - the original one, not a Vi, and we're on regular old DS Lites.
We do have different cards, mine's a 2GB her's is a 1GB... but both are Kingstons, so that shouldn't be the issue..
Some games work on hers and some don't. No pattern to it really as far as I can tell. 1.90 beta 11 is working fine for her though.
Any ideas? Should I just wait for a more stable release?