Please read closely the following emails [from my colleagues and me, tactfully pointing out that the problems he's having are known issues that he claimed to have dealt with in his fabulous new code].
[technical details omitted]
The [...] issue might require several iterations before we get it right. Please consider to come in to work on it this evening so that [my colleagues and I] can start QC in the morning. We have only 4 days left before the committed delivery on 10/16/2006.