I have a 96 Accord EX (automatic) with 88k miles that has recently started having shifting problems when cold. I believe what it is doing is called "flaring". It will rev (as if in neutral) when shifting from 2nd to 3rd, then engage. It doesn't seem to do it when shifting between other gears and only when upshifting. After driving for 5-10 miles the problem seems to be gone. I have had the fluid changed, but htere was no improvement. There was no evidence of excessive particles on the plug, and the fluid was relatively clean. Anyone got any ideas what might be going on here?