Thanks for the replies, my monitor isn't calibrated so will have to do that have been thinking about doing it for a while.

Have tried another print lab and these prints are different again!

Got two photos printed one of a mill in black and white and one of some daises in colour;
from Photobox the B&W print had a slight pink tinge to it and wasn't that sharp and the daisy print was ok, nice and colouful .
Got the same photos done at Bonusprint and the B&W print was very good very clear and sharp and it was B&W no colour tinge to it, on the other hand the daisy print was not that good at all, the grass was brown instead of green! but it was sharp.

Any ideas?