I've been having an issue with Netvibes for a while. Arbitrarily it will decide to reset some of my feeds to only show the newest items, and it limits my maximum item count to the number of new items. For example, Ed's comment feed was mysteriously reset to only show 6 items. Now I know there are more than 6 comments on Ed's blog, so something is going wonky. I've gotten the same thing on just about every blog I subscribe to, including my own comment feed, so I know it's not just a specific template or server causing the problem.
I e-mailed Netvibes, but let's just say they've been less than helpful. I know that a lot of you use Netvibes, so could you tell me if you're seeing this too?