There is definitely a problem with this latest distribution. I think it has to do with the size of the hard drive. No problem installing to notebook with 8GB hard drive. Desktop with 80GB hard drive stops at Install Step #4 and is unable to see existing partition, even if there is only one. Tried same hard drive in 2 computers, same result. Attempting to use gpart creates partitions but install goes no further.
I had given up until I found this:
http://ubuntuforums.org/showthread.php?t=1305858V9.04 does not have this issue and Prepare Disk Space is ready for remainder of install. It did lockup my PS2 keyboard, so had to use USB keyboard (very strange!).
THIS IS A BIG BUG!!!UPDATE: I can confirm that installing 9.04 first did exactly what it was supposed to. I then upgraded online to 9.10