Sprint Hero ringtone error/ sound issue

[fiend156]

I have a spint htc hero running cyanogen -7.1.0 -HeroC. I really like it but wish I hadn't rooted but I did and now it won't let me un root it. My problem is two fold my ringtones, sound native to the handset(Not Pandora It works) dont work even at top volume. And the other issue is that I get force close message about half the time I try to start some apps. I am new to the forum and I would appreciate any help. Thank you