Intel BootUtil no longer understands gPXE/iPXE images?

[RandomInsano]

Hey folks, great project here. I'm pretty excited

I have an intel 82540 (8086:100e) based Gb NIC here so I decided to make it even better and get some iPXE loving on there.

The problem is BootUtil just does NOT want to understand these ROM files. No matter what I do (flash, attempt to verify), if it tries to read the ROM image, it just sits using exactly 50% of a single CPU core and never outputs ANY text.

Here's the things I've tried:
- Renamed the ROM to everything remotely sensical
- Leaving it for twenty minutes
- Using an image from gPXE's online ROM builder
- Built my own ROM in Linux from Git HEAD (had to ignore build warnings BTW)
- Tried running the Windows BootUtil (both 32 and 64 bit) on Win7
- Tried running BootUtil as regular user and super user
- Tried updating as PXE with `-up`
- Tried flashing as the backup ROM type
- Tried flashing from FreeDOS (followed all instructions here: http://ipxe.org/howto/romburning/intel)

What the heck am I doing wrong here? Is it just that newer versions of BootUtil hate the project? Is there a place I can grab an older copy?

Any help welcomed.