15 GPU WUs @5:33 per Inventory, No New Work; No Explanation

I have 15 GPU WUs in inventory, each of which will take about 00:05:33 to complete. Yet I constantly get "No work sent" response from a server that has 92,000 WUs available. No explanation is forthcoming about why no work sent. Computer ID: 6120747. Why is that?

8/1/2011 5:43:14 AM SETI@home Reporting 2 completed tasks, requesting new tasks for CPU and GPU
8/1/2011 5:43:14 AM SETI@home [sched_op_debug] CPU work request: 3092701.37 seconds; 0.00 CPUs
8/1/2011 5:43:14 AM SETI@home [sched_op_debug] NVIDIA GPU work request: 853545.93 seconds; 0.00 GPUs
8/1/2011 5:43:20 AM SETI@home Scheduler request completed: got 0 new tasks
8/1/2011 5:43:20 AM SETI@home [sched_op_debug] Server version 613
8/1/2011 5:43:20 AM SETI@home Message from server: No tasks sent



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I'm not sure where you're seeing 92,000 workunits available, but when I check I see 3 workunits available. Since the server status page isn't updated in real time, those three workunits may not actually be there by the next BOINC request.