Mind Games -- in many ways the most forgotten of the mainstream Lennon releases.      The stress of the deportation issues, Richard Nixon's reelection and the fight for Kyoko were taking their toll in the Lennon household.    John's response was twofold:   keep apologizing to Yoko (in both word and song), and come up with an LP in the "Imagine" mold to try and win back the affection of the record charts.     Altough neither was immediately successful, time, a pregnancy and an excellent posthumous remix may have resulted in each of those boxes eventually being ticked.