Hi,
Please try these options.
Option 1:
========
1. Click Start, point to Settings, and then click Control Panel. or
Click Start, and then click Control Panel
2. Double-click Internet Options.
3. Click the Advanced tab.
4. Under Browsing, clear the Enable third-party browser extensions
(requires restart) check box.
5. Restart Internet Explorer.
Option 2:
========
You could also check the KB Article:
http://support.microsoft.com/?kbid=281679
Here's the details from the KB Article
==============================
To resolve this problem in Internet Explorer, follow these steps:
1. Quit all programs that are running.
2. Click Start, and then click Run.
3. Type regsvr32 urlmon.dll, and then click OK.
4. When you receive the "DllRegisterServer in urlmon.dll succeeded"
message, click OK.
If this does not resolve the problem, repeat steps 2 through 4 for each of
the following files (in step 3, replace Urlmon.dll with each of the file
names below):
Shdocvw.dll
Msjava.dll
Actxprxy.dll
Oleaut32.dll
Mshtml.dll
Browseui.dll
Shell32.dll (Windows XP and Windows 2000 only)
If the problem is still not resolved, verify that the following registry
values are present and correct:
HKLM\SOFTWARE\Classes\Interface\{00020400-0000-0000-C000-000000000046}
Name: (Default)
Value: IDispatch
HKLM\SOFTWARE\Classes\Interface\{00020400-0000-0000-C000-000000000046}\Proxy
StubClsid
Name: (Default)
Value: {00020420-0000-0000-C000-000000000046}
HKLM\SOFTWARE\Classes\Interface\{00020400-0000-0000-C000-000000000046}\Proxy
StubClsid32
Name: (Default)
Value: {00020420-0000-0000-C000-000000000046}
If the problem is still not resolved, reinstall Internet Explorer. If you
are using the version of Internet Explorer that is included with your
operating system, reinstall or repair your operating system.
Post some details if it still happens after these steps. There may be an
entry in theEvent Viewer's Application log which could be a starting
point.
Hopet his helps ........

Ashok (Ashokan Achari)
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