Why does my Xbox 360 have problems when using PAL 60?
If you are having problems with your Xbox 360 using Pal 60 games, your TV may not be capable of displaying a picture at 60hz. PAL is a European standard that is meant to display at 50hz, 25 interlaced frames per second. The North American system is NTSC and it displays at 60hz.
The ADVCs only support standard NTSC (3.58) and standard PAL. Formats like NTSC 4.43 are not supported. PAL 60 is a non-standard format, which makes it hard to capture. Some capture cards with a certain Brooktree chipset are able to capture it in combination with Dscaler.
Older TVs designed for the European market had no expectation of needing to display PAL 60 were therefore not designed to cope with it.