This has happened on four computers so far, including two of mine off-site. Win7Pro and Office2010.
In Word, a tooltip mouseover or a right-click times out in about a second. That makes it hard to do things.
I can fix it by doing the Word "repair" operation and rebooting. But it breaks again if I run a browser, either Firefox or Chrome.
Installing a new version of Office doesn't help.
I've googled (a lot) but found only a few complaints and no fixes.
Has anyone else seen this?