Sorry to hear you are having problems. Var regions should be fine (although I have heard some really large ones can have a few issues, but we are talking 4x4 and larger)   What version of OpenSim are you using? (You can find that information from the Firestorm under Worlds menu item, then Region details then Region tab)
Also, do you have access to the OpenSim server console? If so, does it show any errors/warning messages etc?

Read More...