In the past, when I ran SS&D from the Desktop, when I clicked on Check for Problems, it offered to delete temporary files. It is not doing this today, neither on my PC nor on my wife's.

Any idea why?

I am running SS&D 1.6.2.46. Latest detection update: 2012-05-30.

I am running XP SP3; my wife is running XP SP2.

In Settings, Offer to clean temporary file folder is checked. I find it hard to believe that it is empty.