intrnet explorer

[jonfra]

Can anyone help,i have on screen, a window message, about 6inchx4,telling me, internet explorer cannot display,but it does display ok there is not a problem,,now the sticky bit,i cannot get rid of this window ,i click the x but it appears in the tray ,click the tray up it comes again,reboot the sodding thing sits proud in the middle of monitor,
any help of getting rid of this once and for all
i would be gratefull.
jonfra (derby)