Doctor:
Not quite sure what you mean. Do you mean the record does not seem flat on the platter? Or is the platter not flat compared to the deck? The first thing I would check is whether the record is sitting properly on the spindle. Sometimes the hole is not quite big enough and will not completely allow dropping so the record will appear warped. Usually there is just a small piece of label or vinyl that is preventing this.
Second this, sometimes I have to enlarge the hole to get the Beogram 8002 to track it properly
Beocenter 9300, Beogam CD50, Beocord 5500, Beomaster 3400, Beomaster 4400, 2 Beogram 4000, Beomaster 8000, 2 beogram 8002, Beovox S-75, Beovox MS150.2, Beovox RL6000, Beovox S-35, Beomaster 6000, 2 Beocord 9000, Beocord 8004, Beocord 5000, Form 1, 2x Beolink 1000, Beo4, MX3500, LS4500. Born 1993.