Depreciation Stright line

Hi,

I'm not able to set up a depreciation method for straight line in the correct way. The scenario is the following:

I need the asset to be depreciated in the following way:

     - Full year convention: This means that even the asset creation date is in june, the depreciation for june should be the accumulated since january.

     -Straight line depreciation.

     -84: month.

Thing is that if I create the asset in the current year, I've the correct amounts with the following formula:

Method: 01

Depr info: W

Computation Meth: I

However, if I create the asset in 2013 the avobe formula does not retrive the correct values.