The petty grievances of life in a cubicle should be funny and resonant, and past productions of this long-form improv show have been positively reviewed. But the night I attended, the painfully awkward ensemble stumbled away from character-based comedy and searched desperately for something, anything, to get a laugh from a cool audience. The roles most of them fell into--a forcibly cheerful power-hungry boss, male and female versions of a ditsy secretary--were simply dull. The only consistently successful cast member was Second City National Touring Company veteran Cesar Jaime, whose worker bee perpetually made wry excuses for himself. His subtle, deadpan humor couldn't save a show that had lost its way, however. Through 11/1: Mon-Tue 8 PM. Stage Left Theatre, 3408 N. Sheffield, 773-551-2703. $10.