Boxster water loss

[Dexster]

Just a note to thank you guys for your help and advice regarding my leaking Boxster, the rads have been replaced and I am leak free,just another question though, the car has done 100,000 miles but with a full history, it leaks or uses no oil and runs very well but on start up there is a slight rattle for maybe one or two seconds, is this something to be worried about or am I being paranoid? Again any advice guys?

Cheers Rich Dean