Microsoft Musings

Has anyone ran into this problem? Periodically, I get the following message since I installed Internet Explorer 8 Beta 2.

Internet Explorer was closed
To help protect your computer, Data Execution Prevention has closed Internet Explorer. Click to learn more.

The funny thing is, nothing seems to close. IE remains running. Does anyone know what causes this? Is it an addon, like Google Toolbar? Or just a bug?

Update: I’m pretty suspicious its a Google Toolbar problem. Several times this error has occured when I open a new tab. The tab will still open, but Google Toolbar will not appear on the new tab.