Classic layout missing in SU53 transaction after Support pack implentation

Hi All,

Recently we have implemented support packs for 4.6c release from 51 level to 53 level ( Basis & Abap) , since then the Classic layout is missing in SU53 transaction and instead TREE layout is there by default also print , save functionality id disabled.Please help us if any one of you have come across this kind or problem.

Points will be rewarded.

Regards,

CS