I realize its extremely rare for Macs to hang but yestertday while visting a site that needed a special font Safari was spinning its' wheels for a good hour. Is there an application (like Xkill on unix) that kills a window without rebooting the machine? I have a G4 iBook. I also tried to "ps -ef" on my terminal application to try and kill the process but the ps I have installed does not understand "-f". I get "illegal Operation -f." Thanks in advance.