KLaptop won't suspend or hibernate anymore

When I try to suspend from the KLaptop system tray icon, it goes to the "Desktop Session Locked" dialog box, and sits there forever without suspending. But KPowersave will suspend just fine. This started when I ran updates yesterday morning; worked fine before that. Tried an older kernel, no difference. Any ideas? I can switch to KPowersave if there's no solution, but I prefer KLaptop. This is on Ubuntu 10.10 and Trinity 3.5.12. -- PGP key: http://homestead-products.com/pubkey.htm