Start Internet Explorer. On the Tools menu, click Internet Options.
Under the Advanced tab, click Reset. In the dialog box Reset
Internet Explorer Settings, click Reset to confirm your choice.
If this doesn't work try the following:
Exit out of Internet Explorer. type Ctrl-Esc to bring up search bar,
and type "cmd". Right click and choose "run as administrator". When
the command window opens type "regsvr32 oleacc.dll". Open Internet
Explorer back up and Ctrl-F should work fine.
Source
Most of this is for IE9 but it should apply to IE 8... You could just update to IE 10 and not be 2 versions behind? :)
Have you implemented the menu bar? If not, that may resolve the problem (or at least give you a way using Edit / Find to bring up the appropriate toolbar that for me appears under the favorites bar when activated). Here's how to add the Menu Bar: http://www.howtogeek.com/howto/29533/always-show-the-menu-other-toolbars-bar-in-internet-explorer-9-beta/.
Troubleshooting and Internet Explorer’s (No Add-ons) Mode
http://blogs.msdn.com/ie/archive/2006/07/25/678113.aspx
Does the behavior persist if you Reset IE Advanced settings (RIES)?
http://support.microsoft.com/kb/923737
If they don't work, uninstall IE9 and then re-install it again. But
let's be sure we install it the right way.
First, lets make sure we've covered any problems such as missing
prerequisites and such. Follow the instructions in this
article:http://support.microsoft.com/kb/2409098. Ignore the
recommended download locations in the article and use the one that
follows:
Go
to:http://windows.microsoft.com/en-US/internet-explorer/downloads/ie-9/worldwide-languages
and select languages and locales under the download now button and
then choose your language and then your version of Vista (possibly you
were getting the wrong version in WU or from another site if that's
how you upgraded). When it prompts to download, select "Save As" and
browse to your Desktop and save it there.
Once the download is complete, go to your desktop and the installation
program icon should be there. Right click on it and click on Run as
Administrator (even if you are already logged in as an administrator)
and it should proceed with the installation (this process sometimes
helps with installations). Reboot when done and when you return,
hopefully IE9 will be installed and working.
If that doesn't work, check out the following article on
troubleshooting IE9 installation problems:
http://support.microsoft.com/kb/2409098.
Source
This is not tested, do so at your own risk and research the oleacc.dll first!
Resolution – To resolve the issue, you should re-register oleacc.dll
file. Follow the steps mentioned below:
Click Start
Click All Programs, Accessories
Right-click Command Prompt and select “Run as Administrator” as shown
below:
At the command prompt, type the following:
regsvr32 oleacc.dll
This will resolve the issue.
NOTE: Ensure that you have closed all the Internet Explorer windows,
while performing this task.
Open IE now and select Find. You will be able to see the Find bar
Source
since you are facing issue in I.E 8 alone,Can you please try to reset the settings by going to tools -> Internet options ->Advanced -> Reset Internet Explorer settings and check whether still you are facing the same issue. – vembutech – 2014-12-30T18:06:39.297
Did it ever work? What AV do you have? Are you using a program like Comodo or any key mapping? – Dave – 2013-08-30T10:45:49.250