Triple Boot

Still trying to get triple boot to work. Here is the setup:

Disk(0) partition (1) Windows 2003 RC2
Disk(0) partition (2) Windows Vista RTM

Disk(1) Partition (1) Fedora 6 102mb - swapfile? Used install defaults
Diak(1) Partition (2) Fedora 6 37GB - Used install defaults

On boot the windows loader shows all three OS. The first two, Vista and 2003 work fine. The third, Fedora, goes to a blank screen and sets. I have tried this install several times with the same results. I even tried letting GRUB be the loader - that didn't work and required a re-install of Vista. Does anyone have a similar setup that works? Disk view attached