feel like a lucky lad ,heres me thinking it was his shoulder,saw a very gifted man on saturday night,and he found the problem,turns out hes stretched a tendon in his foot,he advised rest and lead for 3weeks, apart from that he checked the whole pup and said he was sound....happy days,the vet wanted to xray the shoulder if it was still ther in 5 days,just shows what a little bit of luck and speaking to the right people can do for you,...so fingers crossed he comes good,....thanks for all who posted,helped and advised,especially the local greyhound trainner,who put me onto this chap,very much ap