so maybe two days ago my macbook froze and i tried to restart it , it would chime but would not load after the gray apple screen i have tried option/command p r and command v its not stuck in a process nothings really helped at all , the last time this happend i left it loading for a while and it worked itself out but is not doing that now. is there anything i can do without the os 10.4 disks cause i dont have them with me .. if you can help i'd be so grateful