RPi Wont Boot without HDMI Safe Mode

[kingblah]

Hey,

Hopefully someone can help! I'm new to the world of Linux so bear with me please.

I installed Xbian using the windows installer (the mac installer refused to work and seemed to think the write switch was enabled for some reason). However when I plug the card in and power up the Pi, my TV doesn't detect any signal via HDMI. It's not the cable as HDMI worked fine with Raspbian.

I then read some forum articles which suggested using the hdmi_safe option in config.txt, but this seems to result in Xbian having a horribly low resolution. Any ideas??

Software
XBian version: 1.0 beta 2 (also tried RC 2)
XBMC version: Unchanged
Overclock settings: Unchanged

Hardware
Power supply rating: 5V 1A
RPi model (model A/B 256mb/512mb): Model B+ 512MB
SD card size and make/type: 8 GB kingston microSD
Network (wireless or LAN): LAN
Connected devices (TV, USB, network storage, etc.): None