Asset Sale W/O Revenue ( Acc Dep Post Less)

Dear Experts,

Asset Sale W/O Revenue:

In Asset Accounting, system calculated and posted depreciation correctly, when I am trying to sale without revenue System Debited Acc Dep A/c with one day Less amount.

Ex:

Asset Sale Date:31.07.2010

Dep Posted Value Up to Asset Sale Date: ` 11,790.20

Asset Sale Date : 31.07.2010

Dep Posted Value Posted : ` 11,760.20

Accounting Entry:

75 u2013 Main Asset : ` 35,500.00

70 u2013 Acc Dep: ` 11.760.20

40 u2013 Asset Sale Loss: ` 23,739.80

At the time of Sale w/o revenue system posting 11,760.20 instead of ` 11,790.20 ,it is posting ` 30 Less.

Please guide me, why system posting wrong acc dep.

Regards,

Viswa