My machine table has a banana shape on X axis (about .08mm on 1000mm) and a constant slope on Y axis(about .05mm on 500mm). Could it be a leveling issue?? It is a hardinge VMC1000.

Is your turkite still good? What do the ways look like? You may have to install hold down bolts & "pull" it back into spec.

it is on linear bearing and they look good

In any machine installation,The 1st thing that is done is leveling the machine.Eliminate that error to start with. If you are shaped like a bannana you may not be supported enough in the middle of the machine. Use a precision level .0005 per foot increments.When machines are built, they are built level and aligned from there.
check it out and good luck