See the recent, views, newest and votes sort buttons on the profile pages:
This can also be repro'd on other Trilogy sites. In fact, even Mr. Skeet is not immune.
This will be fixed in the next build, it was a counting error.
We intentionally hide the controls when there are very few questions/answers, there's no need to sort 2 or fewer items we feel (we trust most users are smart cookies!).
However, it was using the page count rather than the total count when determining this...in the next build (today or tonight) this will be fixed.
Like noted in the comments, this indeed also applies to answers. Like right now:
Also when there is just 2 items in total, but that is hardly an issue: