Xbox 360: change to PAL 60hz
After getting back my Xbox 360 from repair I was reminded of an awkward bug in the system. I couldn't play two of my games, DOA and Crackdown, because they only run in PAL 60Hz. The default setting for my Xbox system is PAL 50Hz. Seems ok right? just go to settings > video and make the changes. But its not so simple. My Xbox is running in HD mode through component input to my TV. This completely removes the options for choose PAL settings from the system menu leaving (I presume) many users lost.
The solution is to turn off your Xbox 360, change the switch on the video cable from HDTV to TV and then turn back on. This usually involves digging out the video block, connecting it up and finding a scart input to your TV. Now you can access the PAL settings to make the change to 60Hz. Then you can unplug all your cables and put it back as it was!
This is incredibly annoying. It seems these games are detecting a system setting and refusing to run, even when you're running in high-def mode and that setting (I assume) doesn't figure in to the equation as the Xbox doesn't even let you access it when in HD mode.
Update: Thanks for the comments. If your picture is coming up in black and white it's likely that your TV doesn't support 60hz and this is the best picture it can make from the signal.