I woke up this morning to see that Springboard had crashed overnight and my 4s was in Safe Mode. Since then, the crashes and Safe Mode restarts have happened several more times. As part of the troubleshooting process, I removed the few things that I had added yesterday. Among those were Bytafont and the Deja Vu font. I'm still having the SB crash problem, but (and here's the odd thing) my system font is still Deja Vu (even though it and Bytafont have been removed). Is that normal?