1994 Ford Probe Grayish or white smoke on during cold start

I have a 1994 Ford Probe with a 2.0 liter motor. After the vehicle sits it smokes during a cold start up but then goes away after it warms up. I can't tell if the smoke is gray or white. I have replaced the head gasket, checked and changed the oil and verified coolant color and/or any coolant loss. Everything appears to be normal. What could it be and what may be a remedy to alleviate this issue?