The TrainLine URL problem looks a lot like my own URL problem. But TrainLine worked just fine two or three times in a row using my Safari browser and Google. This despite that this combination of browser and search engine frequently fails to summon URLs, producing error messages instead. The messages take various formats, all announcing that the site doesn't exist or isn't on the server, etc. Sometimes a message bears the Google logo, indicating it came from the search engine, other times it seems to come from the web site being summoned.
This problem of being unable to summon URLs did not exist with my previous Earthlink 58K dial-up service. It began when I went on Earthlink's DSL service last week. Now, web sites download rapidly, but Safari and to some extent Internet Explorer have frequent trouble connecting with them. Numerous clickings of the repeat icon may bring success when that happens. Earthlink technical people have had me put DNS server numbers in the appropriate System Preferences > Network window where before there were none, but the problem persists. I’ve downloaded Internet Explorer, and it seems to work more reliably than Safari.
iBook G4 Mac OS X (10.4.3)
iBook Mac OS X (10.4.3)
iBook Mac OS X (10.4.3)
iBook Mac OS X (10.4.3)