SERVICE TAX is not Enabled for the Party Ledger

Dear All,

I am using tally ERP 9 LATEST VERSION. I am facing the SERVICE TAX is not Enabled for the Party Ledger(S.T.Enabled)

in April 2010 to May 2010 months voucher entries. the same party i am entered from June there is no problem with the S.T.ENBLED but problem in April, 2010. I will explain how to pass the entry and when the error came.

05/04/2010

Jrnl Voucher

Dr. Party A/c 1,10,300/-

Ref. 001

Cr.  Professional Fee (Sales A/c) Cr. 1,00,000/-

Method Adj.

New Ref. Jrnl/1-1  Type of Service :Taxable  Category : Consulting Engineer    Service Amount : Rs. 1,00,000/-   Amnt Incl. of Tax  Rs. 1,10,300/-

Service Tax @ 10%  10000

Ed Cess @ 2%             200

Sec Ed Cess @ 1%      100

Cr.  Service Tax Receivable.     Rs. 10,300/-

After that the error message is came. SERVICE TAX is not Enabled for the Party Ledger

(if i am not entering the professional fee without adjustment the voucher can create otherwise not) in this case i am not using udjustments)

after receiving the payment

Rcpt Voucher

02/07/2010

Cr. Party Ledger A/c Rs. 1,10,300

Aginst Ref. 001

Cr. Service Tax Payable  10,300

Dr. Service Tax Receivable Rs. 10,300

Dr. TDS Rs. 11,030

Dr. Bank A/c Rs. 99270

I have this issue on more than 12 entries in different parties (problems in April & May entries only)

Pl. solve this issue

Thanks 

Babu