I recently upgraded to a Windows 7-64 computer and moved all files over from my old XP machine. After bookmarks loaded I had to 're-bookmark' some that didn't work. From then (~week ago) until yesterday everything appeared to work normally. While attempting to update an expiring website yesterday, I found I cannot add the current bookmark for the updated site nor delete the bookmark for the outdated site. All bookmarks connect to respective web sites, and everything appears to be operating properly -- except cannot add/delete bookmarks....