roaming costs...

[joko]

occasionally my blackberry will show a little triangle at the top of the screen, which apparently means i am roaming

however, this is not intentional and the only way to stop it seems to be to turn the phone off an on...

so just wondering - does this matter? is it costing me money to have the triangle there? is my internet usage costing me more because of it?

or is it safe to just leave it there?

thanks