My "Recent comments" widget on my sidebar doesn't seem to be working so well at the moment. However my normal comments are working fine.
I think this probably has something to do with switching to the new Blogger. My comments are managed by Haloscan and over at there forum it seems that people are reporting a bunch of bugs mainly to do with people that have multiple sidebar widgets (people like me). With some luck everything will be back to normal in a few days - either that or I'm going to have to switch to a new Blogger template and start hacking all over again....