Normally I wouldn't add a "me too", but since it's in question about whether this can be reproduced... I also experience this problem, both in my current state (customized + a dozen extensions), and with a completely new profile.
A quick test is to right-click on the top toolbar, click "Customize", drag the Search bar into the "unused toolbar items" section, then click "Done". Ryan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
