Disappearing Internet Explorer Links Toolbar

Why is it hat every time - well, quite often in fact - my Internet Explorer Links Toolbar, on which I keep my most visited sites, keeps on disappearing. I put everything in position, lock the bars, and still the bar isn't visible a lot of times. But hey, wait, can it be that when I'm doing offline reading they're automatically not visible or something. OK, I'm offline right now so there's no way to prove this. Some research needs to be done here. I like learning new things, so that won't be a problem. I'll let you know the answer