extra values come as total in adj opening balance in detaile vendor ledger entry why this come

Hi guys i have problem in vendor-detaile trial balance report as linking below

http://www.mediafire.com/view/?6jw96pgjg9g4185

i see value found in adj opening balance as 99360 as picture above when i write in date filter 01-09-12..30-09-12 and vendor name ram-ssy  i go to the table detail vendor ledger entry i found some extra entries as following found in table detail vendor ledger entry but not found in report as above

: entry type          document no              document type      source code    amount        date

  initialentry          RA-PPCM-000001     credit memo          purchase        49680           30-09-12

application        RA-PPCM-000001       credit memo          purchase      49680             30-09-12

application       RA-PPCM-000001      credit memo          purchase       -49,680.00     30-09-12

Initial entry        RA-PPCM-000002      credit memo          purchase        49680             30-09-12

application      JE-PUJ-12-09-0043                                     purchase        -38,520.00             30-09-12

application     JE-PUJ-12-09-0043                                     purchase         63,310.00     30-09-12

application    JE-PUJ-12-09-0043                                      purchase       -24,790.00       30-09-12

I make total to this entries i found it as value 99360 why it come like this.

1- why this total as 99360 come like this and how i solve this problem

the report is detail vendor trial balance as standard no any customization

please help me

thanks