valg af visse sider giver application error og browser shutdown

When I select certain webpages I get an error
message: application error iexplore.exe:
ex:  "0x748a89a1 ref. at  0x0000004c,  unable
to read memory."
I select OK and the browser shuts down.

From the event viewer I get this:
"Faulting application iexplore.exe, version 6.0.2800.1106,
faulting module mshtml.dll, ver.6.0.2800.1173,
fault address 0x0006d082"
and
"fault bucket 48346735 "
I have changed the mshtml.dll file but the error persists.
How can this be corrected?