To all concerned with this problem:
It seems that I have this problem too. I have XP installed in a dual-boot OS setup (multiFAT, using SC7). Although I do have Kazaa installed under 98se, it is NOT installed under XP Pro. Nonetheless, when I open up an Explorer window, OR an Internet Explorer window, the menu bar, with "File", "Edit", etc. is gone! Now, I use PowerDesk in XP, so that helps, but those are kind of handy in the IE. Perhaps if I upgraded it, but I still want to find out more about the current service pack first.
If this is a common error, a few good Copernic searches have failed to turn up mention of it anywhere else on the entire web. Nonetheless, three people have it here. I have a hypothesis as to how it might come about. Perhaps it stems from one of those websites that pops up a window without the menu bar. Then, perhaps someone either coded it wrong, or XP somehow set that as the default behavior. I don't even know the code for that, much less how to turn off a global disable. Another possibility is that when I was editing some of the system policies, I accidentally turned it off. I don't see an entry like that again, tho.
Anyway, it seems to be an issue that affects XP generally, and three ppl here have it. The solution, if it is on the 'Net at all, is nowhere in evidence. Does anybody have a fix?
TIA,
JC