Report scheduling issues in SSRS 2008 r2?

Hi,

i did one report to deliver with in interval of time i.e scheduling. but i am getting the below error i.e my scheduling is failed and generating the below issus

Failure writing file \\197.178.2.17\ReportSchedule\Report1.xml : Access to the path '\\197.178.2.17\ReportSchedule\Report1.xml' is denied.

but i did sharing of folder (Report Schedule) fine with full acess.

how do i fix this issue. it is very urgent.

please share your ideas.

Thanks in Advance.

franklinsentil