Is anybody else having the problem of having a small light-yellow box appearing next to the cursor at random moments? I can't catch a screenshot of it unfortunately, but it's annoying that it keeps happening all the time.
Yes, and it's actually starting to become very annoying. I've searched everywhere for any information on what this is but cannot find anything. It started with 3.5 - no new add-ons, etc.
Update: I tested disabling add-ons one by one and it turned out to be Google Toolbar. I uninstalled and yellow box disappeared. Unfortunate, as I really like Google Toolbar. May have to live with this annoying UI glitch...