I don't know if this is the place for this, but I'll tell you here anyway. My new hard drive is:220 GIG: Capacity: 220 GB Available: 104.31 GB Writable: Yes File System: Journaled HFS+ BSD Name: disk0s1 Mount Point: / WINDOZ: Capacity: 78.09 GB Available: 78.07 GB Writable: Yes File System: MS-DOS FAT32 BSD Name: disk0s2 Mount Point: /Volumes/WINDOZ So after installing the new Hard Drive I thought maybe it'd be nice to upgrade the OS. So I've got this DVD for OS X Leopard. Its says Upgrade DVD Version 10.5 2Z691-6039-A. Came with a booklet that goes over the main points of the new OS compared with Tiger. When I go to restart the computer, a MBP 2.33 with 17" and 2GB RAM, the computer begins to start up normally, but when it begins to boot off the DVD, the monitor backlight turns off. Then the fun begins, the preferred language screen comes up (I know because I've got a flashlight pointed at the screen), and the next couple screens pop up with prompting, but when I go to select the drive to install the new OS on neither drive has a green arrow, they're both red. Now I partitioned about 80 GB as FAT32 in anticipation of installing Windoz there, so I don't expect to be able to install there, but the other drive, as pasted above from my system preferences panel, is HFS+ Journaled, just like the old drive is. The error that comes back is the software is looking for GUID formatted drive, whatever that means. Anyone know the solution for this install?