Install hanging

[rwalker lewiston com]

  Hello again.

  I am having a problem installing RedHat 7.2 from commercial 
disks.  The install program boots; proceeds, apparently normally for 
a while; but then the system "hangs".  The hdd light remains on and 
the CD light flashes, but nothing else happens.  This continues until 
I hit the reset button ( went for three hours once before hitting 
reset).

Am I overlooking something?

Any help is appreciated.