I dont use the 909 much anymore, but i remember having hideous syncing issues between the machine and Cubase SX3.

Syncing it to Ableton helped the problem slightly but i was never able to get it fully synced perfectly. I agree with the above, triggering it with midi and using it as a sound module is much better.

Hell i only used it to paint 4 kicks in a bar in the midi sequencer, print it down to audio and then just copy and paste across the entire track. Never could figure out why i couldnt get the 16 step sequencer to sync properly.