so yea, i just got a new imac and im hooking it up for my dad. then it got unplugged during the welcome screens where i set everything up. then when i turned it back on, it went right to the desktop. Now my internet is really slow like 3 kbps. when i try to do network set up it just kinda hangs and does nothing. how can i set the computer up again like the first time i turned it on or how can i just my internet working . thanks