Firefox not showing is prolly because Java isn't enabled for it in Java Contol Panel Security Settings -> 2nd screen
http://www.havenandhearth.com/forum/vie ... 20#p450228If you enable it there keep it disabled in Firefox -> AddOns -> plugins for security reasons (there aren't much Webpages that need Java anyways but some ugly exploits using it)
Ati 1650 is a very low card nowadays - you might check if Triple Buffering is disbled in CatalystControlCenter 3D Settings OpenGL
With "how connecting..." i meant the connection between your PC and fibre modem (Router) - if connected by WLan/WiFI there might be a little delay too...
If you want you can PM me your tracert infos - i'll keep them confidential
Perhaps its simply time to upgrade this hunk of junk computer.
With XP getting Support no more it would make double sense ... maybe update to Win7 64 Bit and get a better graphic card as a first step ...