Searching through the internet, it seems that it is the "accelerators" that are causing the problem. Here is a proferred solution:
<blockquote id="quote"><font size="3" face="book antiqua" id="quote">quote:<hr height="1" noshade id="quote">The icon you are describing sounds like the "Accelerators button", ...
"To disable the Accelerators button select Tools. Then click Internet Options at the bottom of the menu. Choose the Advanced tab. Under Browsing uncheck the box "Display Accelerator button on selection." Click Apply, then OK. Close Internet Explorer 8. When you restart IE8 the Accelerator feature will not pop up when you highlight text. You will still be able to access your accelerators by right clicking on highlighted text".
How to use Internet Explorer 8 Accelerators
http://ie8-internet-explorer-8.blogspot ... ators.html
Have you tried running your browser, if that is what you having a problem in, with No Add-ons, or resetting it to Defaults.
Click the Start button , click All Programs, click Accessories, click System Tools, and then click Internet Explorer (No Add-ons).
How to use Reset Internet Explorer Settings (RIES)
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Just in case someone comes up with a better answer, I went through the procedure for "no add ons" and disable accelerators, and it is not much better.
BG Ross McDaniel