Not printing toward back of bed

[voodoo_chile]

My Creator Pro is printing great except that it does not print in the back 25% or so of the bed. It makes a clicking noise like the filament is jamming and nothing comes out. It works fine in the other areas of the bed. Any ideas?

[jfkansas]

Need to lower the bed in the back. Level it with the bed fully heated. What is happening is the nozzle flow is being shut off because it is too close.