Why does the code allocate sizeof(worklist)+20 in alloc_resume and then put_resume on the worklist and the count? What's the point of the +20? -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>