Two things to look at.
Your transmission mount and the shifter cable. At the first cold start, your engine and transmission vibrate quite a bit. If you move the shifter cable while the engine/transmission is vibrating, there is a chance that your shifter cable gets pulled out of gear to neutral. When you remove your foot off the gas pedal, the transmission "moves" to its original position, thus "shifting" the shift cable back to where you had it before.
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Tuesday, February 3rd, 2009 AT 3:24 PM