Ok i get this thing when i click on a link nothing happens, i tryed re-installing java but that didn't help. i get it in my hotmail and my dad's other e-mail providing site.
i select in hotmail the message(s) i want to delete, press the delete button on that blue toolbar in the site, and nothing happens, the bar on the bottom of my browser doesn't say it's working or anything.

i got IE 6.0, adsl, win98, 466 mhz, 160 ram...

Is JavaScript enabled?

yees.