No tool wear calculation through MDI

Hi there,
I have the folowing problem on a Oi-tc lathe.
When i call a tool using MDI (T0101) the toolgeometry is used to determine the absolute position of the tool.
When i make a corection in wear this is not calculated the next time i call the same tool.
Example : - MDI - T0101 with X0.00 wear , manualy jog to X100.00.
- make correction in wear X+1.000, MDI - T0101 should give a absolute position of X101.00.

this does not happen absolute position remains X100 regardless of the wear i enter.

Anyone got an idea what i should do to solve this problem??

regards