disappearing websites

I have been having trouble for a couple of months with websites disappearing. About every 6th website i go to, while reading it - it will just close and disappear. I am not knocked off the Internet - just will lose the website. There are particular ones that I can't get on, and then there are random ones i happen upon while surfing. I would appreciate some advice on how to fix this. There are some websites that I need to do business with, but they disappear after about 30 seconds.
Thanks, gemgypsy

Hi gemgypsy, welcomr to Virtual Dr :)

Please can you give us as much info as possible about what you are using, such as what web browser, what OS, is it dial-up, cable or DSL, etc.?

Hello,
I have Windows 98se; use Internet explorer version 6, dial up modem. I hope I can give all the info you need, I'm not very computer literate as far as all the techinal terms and lingo or the inside workings.
Thanks, gemgypsy