safari issues

i hope i am in the right place... i am having problems with safari shutting down when using. it first started on my later model with snow leopard and i posted this https://discussions.apple.com/thread/3434832?answerId=16554772022#16554772022 and did all the replies. it seemed to stop hanging up. now it is on my husbands older model the bubble computer ver. 10.4.11 (tiger) i have tried doing everything suggested with the first computer but no luck.

the one problem i had was when i moved the safari.plist out i could not get safari to open. it says no network connection. then i moved that same plist bsack and i got the connection with internet.

can anyone help? i know we need a new mac but not in the budget as of yet.

thanks, movie lady