[warlock]

Given Jeff's remark about how 'most of the bot handling methods are designed and understood only by him', i'll change my vote from trojan to Jeff's got a bug in his software. Or quite possibly Pokerstars has a bug in its reporting software, and given that Jeff clearly doesn't understand the principles of the underlying technology he's using (viz. his remark about sql), he's not going to be likely to figure out.

Statistically detecting bot play is certainly an interesting problem, but i'm not entirely sure that i'd rate looking for long continous periods of play as particularly sophisticated, or indeed difficult for others to understand. Although given some of the postings to this thread from the ignorati, that last might be an unwise assumption.