Tethering problem...along with YouTube app problem

[jrdatrackstar]

I'm runnin a stock Sprint ROM on the Diamond, and ever since yesterday my tethering hasn't been working. Also, I'm having the same problems everyone else is having with their stock YouTube apps not finding any videos. Is it a ROM problem? I really don't wanna start flashing custom roms with the diamond because I'm scared I'll brick it (although I flashed every other day with my vogue), and stock ROM does everything I wanted in my Diamond (with the exception of tethering without the hacks, and maybe a few other hacks). Also, since I've replaced my Diamond with a new one, I haven't had any battery issues or heating issues, so I really like my phone and stock ROM. Any solutions?