Apple 24" iMac Desktop "pogo games install" Questions

...pogo games for my mac can't open pogo rooms with Safari or Firefox. I am using a somewhat older powerbook. wtf? Safari says i need a new Java download and Firefox just quits unexpectedly. any ideas? ...

...pogo games work fine on my new Mac Notebook, but on open games of backgammon, the pips are not always visible. Ideas? use high configuired Graphics card & if you have then installed it properly ...