I'm trying to multiboot with Windows 7 Ultimate x64.

When I boot from the disc, it just sits at the Apple screen forever.

So I loaded it using -v and I get like thousands of lines of code scrolling up the screen - from what I can kinda see one of the lines says something like "SAM Multimedia: READ or WRITE failed".

The rest is scrolling far too quickly for me to even read the words.

Any ideas?

Specs:
M/B: Gigabyte GA-EP45-UD3L
CPU: Intel E5400 Dual-Core (with SSE3)
RAM: 4GB Kingston
HDD: 320GB SATA WD
GPU: 1GB NVIDIA GeForce GTS 250

Thanks