I tried restoring twice. And when I launch cydia it crashes after about 30-45 seconds.Again I restored twice and re-jailbroken twice. This is the story: I downloaded iNav and I thought that it was hard for me to re-arrange all my icons after I get sick of iNav. So I installed SpringBack. I backed up my homescreen and set iNav out. After setting it out I got sick of it after about 30 min. So I made a backup of iNav and unchecked iNav from WinterBoard and ran SpringBack and restored from backup. After that all was back to normal. After this I installed a leopard iNav theme. And I restored from a backup of iNav with SpringBack but forgot to make categories before. So after this my homescreen was 90% empty and full of iBlanks. I tried installing finder to run SpringBack but finder didn't work on 3.0. And Spotlight doesn't find apps that are not on my homescreen(so no Springback). After this I restored to official 3.0,re-jb,restored from iTunes backup. After the restore my homescreen was just like before(I backed up before the restore with my f****d up screen). So I restored again to 3.0,jailbreak it and restored from a backup made about 3 weeks ago. All was working until I ran Cydia. Cydia upgraded it self and after the setting up thing it crashed. I ran it again and it crashed after 30 sec. So I restored to 3.0 again and now I think I can't jailbreak again... Sorry for this looong "story"