crystal database error

hai friends

my application is having many reports which is generated through crystal reports but only one report is giving the error

after making exe file and running from that file

the error is

"database error,error opening file,file could not be opened and incorrect session parameters"

i am working with vb 6 and crystal report 7 and Access 2000.here database is created in office 2000 and converted to previous version

all reports are working fine but only one report is giving the error so this is very difficult (same database used for all reports)

tried in many ways but i did not get it

please friends come to forward and resolve this problem

thanks you
krishnasamy