Gran Turismo 3 Color Problem (it's in Black and White)

[spooky]

Maplins only hold one NTSC/PAL converter which is arround the £60 quid mark the have arround 60 branches nationwide but if none of them are near to you the also offer a mail order service.

www.maplin.co.uk

I have purchased loads of gear from them in the past and their technical counter staff are second to none.

From what Charlie has mentioned then this is probably the most reasonable answere to your problem. At the moment i cant think of any other cause.