Yeah thats what i thought
- i didnt adjust the screws when i put the new laser in and everything is working fine now!
yeah i removed the solder blob from the anti-static points - i read up alot to make sure i wasnt missing anything
but yeah unbelevablly everything is absolutilly fine - the xbox is working as quiet as ever - and is like brand new - i even got the dust out of the fans at the back while it was open.
I also used a bit of wd40 and sprayed it on a cotten bud / q-tip and then cleaned the worm drive rail - and rubbed it on the metal rails as well because i cleaned the rails first.
and i decided to get the laser from xbox 360 reviver - i didnt really wanna risk ebay in the end - i was worried i would get a refurbished one - but no it was brand new from where i got it
Thank you everyone for your help