problem with hair

Support Particles and Physics Simulations
1

blender interpolated hair, cambed it till it was nice.
Then i adjustd interpolated child settings; which didnt look nice
So i opened a second blender; to see the default values of it to revert.
Entered those again
-but then the hair became much to large.
-only in camb view the hair is drawn correctly, not in render, or in object view.

Any ideas of what has gone wrong here ?.

2

In the particle settings, under display, increase the steps from 2 to 3,4,5 or 6

3

nope its not only display; also when rendering

4

Change render subsurf level to 1

5

well not sure what it was, in the end i undo-ed long enough to revert it, its working again and didnt behave anymore like that.