Have a '00 9650STS, and noticed yesterday that I had a big pile of grain stacked inside the left shield by the fan and extending aft onto the walkway about 3 or 4 feet. Didn't have much time to look really closely at it, as we were getting it into the shed during the rains of tropical storm / Hurricane Alex. This is my 5th year running this machine, and it's the first time I've noticed a pile this large there. I've seen some before, but there's probably enough there to fill two 5-gallon buckets. I've seen something about these machines running it through the fan, but I don't know the particulars or how to solve it. I did check to see that the black plastic covers were still intact around the concave, and all looked well. I do know I was pushing it a little faster than normal, trying to get out what I could before the monsoons hit. I was cutting 5,500 lb/ac. milo at around 5.4 mph w/ 930R header. Concave at 13-14, cylinder speed 710, fan 1200, chaffer 16, sieve 6. Any ideas of things to change / check would be appreciated.