boot manager and SATA/HD

[Brian Schmidt]

I recently built a new machine, which has Windows XP installed on a SATA 
drive.  (I'm also new to using SATA.)  I then installed FC4 on the first 
regular, parallel hard drive (hda).

However, I'm a little confused by the way things get handled with SATA 
being on there now.  In the past, I just chose to write to the MBR and on 
reboot, got the menu to choose.  That doesn't happen now and I'm guessing 
it's got to do with the SATA.  I left it at the default, which I believe 
was to have it write it to hda.

So how/where does one go about installing GRUB in a way that I will get 
that boot manager again?  Where should I have actually installed it?

TIA,
Brian