[Macpartners] powerbook boot up problem

[Phyllis Collymore]

Hello,

My son (a PC person) apparently did something really bad to my  
daughter's powerbook G4 this weekend and it now will ONLY boot up in  
unix mode.  She can login and we can look around and I am hopeful  
that her documents are still accessible.   I could not discover any  
way via unix commands to change how the machine boots up.

Does anyone have any idea how to get it to boot up in OS X.4, without  
re-installing the OS?  I have considered Archive/Install option, but  
worry that her documents could be harmed.  She had not backed up,  
despite my recommendations to do so many times.....

thanks,

Phyllis