Yahoo Directory Results Issue

Can anyone explain this issues to me:

When you search for my keyword in the Yahoo Directory, I appear at the top out of 756 results found. That's great.
However, if you do a simple refresh of the page, sometimes my competitor appears at the top and my site doesn't even
seem to be listed. It also then shows that 767 results were found. If you refresh again, the original number of results are
returned with my site appearing at the top again. You can keep refreshing the results page and it will change between the two
outcomes. Why? Also, my competitors site always appears in both outcomes - whereas mine does not.

Thanks
Bluesuit

This is really interesting. Could you please tell me what is the keyword? I will try to reproduce this strange behaviour.

keyword = car insurance

It happens through the Yahoo UK Directory

My site is 'Andrews Car Insurance'

Keep refreshing and you'll notice that the results change. very odd.

I had to refresh about 15 times...but then sure enough you dropped off the list. This is odd, but I saw something like it about a year ago on Yahoo (US). Honestly I don't know what it means, possibly they are updating or something...but I was able to replicate your results.

Ok - thanks for your interest. At least I know it's not just me seeing things.
Fifteen times is a great improvement - it was pretty much every other refresh yesterday.
I'll post back if I find any reason for it.

Thanks again.

Bluesuit