roles bug

not sure but lately i have created roles for my users to only view there own contacts etc… it wont show any new created contacts or let them view and others unless i change the role to ALL.

when i do this then i get the popup saying

permission to access this is denied

anyone wiling to help will be a great help

all i want is a role structure so users can view, edit, delete their own contacts etc… but it seems impossible… as im trying list view etc etc and nothing is working so everyone can view everyones with no roles running at the moment