Try booting off an OSX CD. At the very first screen
with a menu bar, there should be a Tools or Utilities
or Disk setup item in one of the menus. Basically it
needs an fsck.
Note that sometimes this does not work. If not, you
can get a copy of DiskWarrior or reinstall.
Andy
> >I know this is off topic, but it's also out of my
> league:
> >My sister has a Mac, G4 Silver Bullet) and upon
> last restart, she
> >received (haha, "Aqua Screen of Death?") error
> about "invalid B-tree
> >node size".
> >Now I'm not familiar with Mac's, but I know some of
> Sluger's are. Is
> >this something like messed up MBR? What is the best
> (easiest) way to fix
> >it without loss of data (very important! and she
> does not have backed up
> >in over a month!!).
> >
> >
> >
> >
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