nah f**k this. I'm with dave on this. If you are gonna spend a lot of money on something, it' better to understand how it works, why it works and have a good general understanding about it. I don't like owning something without knowing as much as possible about it. Anyway, it's a f**king forum. There are thousands of questions you don't give a toss about knowing the answer to, but dave does want the answer to this, so either help, or leave the thread alone to let him get the answer... Not being funny about it like, but just cos you don't give a shit about the answer, doesn't mean it's wrong to want to know. Bongo