[syslog-ng] Syslog-ng dropped packets.

Recently, I started seeing dropped packets in syslog-ng. I increased the log_fifo_size to 2000 (it was 1000) and it abated the problem somewhat. But I am still seeing some dropped packets. Could I increase the log_fifo_size? Are there any other tips? Unfortunately, we are going to be adding more logging load to this loghost and I am worried that this problem might increase. Any ideas? Thanks!