I am currently running a dual boot with Mac OSX and Ubuntu. I have four main partitions right now and about 200GB of free space. One partition is an EFI partition for rEFIt, one partition is HFS+ Journaled for Mac, one is ext4 for Ubuntu, and the other is the swap for ubuntu.
When I run the Windows 7 installer, I cannot create a new partition or format the free space and I am given an error, "Too many partitions of that type on this disk", when I try to use the free space. Any advice from other triple booters?