Crystal Rpt 9 Error 717

I have developed an application using vb6, crystal rpt 9 and oracle 8.05 on win XP. The vb application is used to generate reports. The crystal rpt is designed using OLEDB conn. The vb application generates the sql stmt to run the rpt based on user input. The appln works fine on the devel. machine. However when installed on the client machine(win XP), I get the crystal errormsg: 717 - Failed to load database information. Please help with a workaround to this problem.
Thanks,
Vidya