Paul,

After our trip to Arches and Dead Horse Point, I began to think about your problem with the F4. It occured to me that the likely culprit was the autofocus functions that precipitated the demise of the CPU. Naturally as I do not have anything as fancy as one of the AF lenses, I can expect my F4 to perform flawlessly.

[We both know that this is most unlikely, HA HA.] Looking forward to playing with your new lenses, at High Island.