[Findrikku]

Hi there, names rikku,
I have a question abt the tutorials for photoshop..
i have noticed alot of them are done in small format
so they dont seem to print out right,
are they mainly for web design then?
When i go to make it larger say.. A4size the brush sizes dont go big enuf
and Photoshop doesnt like it and desides to have a breakdown
.. is there anything i can do to fix this? i am using a few of the techniques
for high quality printing and so it cant look poos..
thanks!