qship96 wrote:Had a coworker with a older Buick Lesabre with exact same symptoms- car would not go when placed in "drive" only when cold-he would let car warmup 5-10 minutes then all was fine for rest of day, unless it was winter-then if car sat for hours, same thing would happen......he drove it for 2-3 years like that!!!! Finally donated it and bought another car
Shame on you for comparing our beloved Q to a lowly Buick.

I'm sure the Buick's problem was due to shoddy QA at the manufacturer, whereas the Q's problem is surely lack of maintenance by a PO.
Try changing out the factory filter, as it sounds like a low line pressure symptom to me...