I have a crash with your latest build rockbox when trying to play videos from my microSD card(There are just videos on it)
I think the "stackf..." error message is shown.I couldn't read it exactly
Also deleting the .cfg file did not help.
The booting time takes also very long compared to the former builds from you.
Now I switched back successfully to your build from yesterday(070530).
*panic* stkov sd?
Try the custom build cpchan mentioned for those having that problem (either this page or the previous page)