During the install (CUSTOM path), Disk Druid offered the setup of disk
partitions. Once first DELETE and subsequent ADD/EDIT sequences occurred,
the NEXT block was greyed out. Even when all available disk space was
assigned, the NEXT block was still not made available. Using BACK or
RESET buttons didn't fix the situation. Had to reboot system to recover.
There are a couple of conditions which have to be met for the "Next" button to
light. One, there must be a root partition. Two, there must be a swap
partition. That pretty much sums it up. If you have these two things, then you
should be able to continue with the installation. Please reopen this bug if you
continue to have trouble.