network problem

[Tsu-Fan Cheng]

hi people,
   I am using bt to download files and i know this is bad for netowrk...
anyhow..
sometimes my firefox returns "the site not found" on some popular sites,
such as yahoo and google, and it looks like firefox didnt try hard enough
before it gave it up. i have to ask it to "reload" to get it to hook up to
the website. my question is, is this solely due to that i am bting, or there
is something else i can do to make this better?? thanks !!

TFC