Uninstall it, try re-installing it. If you did not do this through Windows Update, you may want to run the Windows Update wizard and do the updates along with getting I.E. 8.
ive been fighting this IE8 crap with a microsoft tech for 8 weeks now = (2 HRS per day) AND WE ARE GETING NO WHERE!
i think he is using my computer for a TEST STATION!
> i signin to my homepage, clk on any news article to read it and get this damned popup (CAN NOT CONNECT)!
> try browsing the web? >> popup says can not connect RUN DIAGNOSTIC TOOL!
> FREAKIN DIAGNOSTIC TOOL SAYS (THERS NOTHIN WRONG YOU ARE CONNECTED) GRRRRRRRRRRRRR
PER ALL THE STATEMENTS MADE IN HERE??? BEEN THER AND DONE IT = 5 times!
CAN YOU JERK THE RABBITT OUT OF THE HAT HERE??