precalculation server 730 patch 3 error

Dear All

my client required to install precalculation server,

My os is windows 2003 server SP2(x86).

I downloaded & installed latest SAPgui 730 patch 3

latest precalculation server 730 sp3

bi addon 730 patch 300,

dotnet frame work 2.0 sp1

office 2007.

but when i run rrmx it is giving rfc error.

i checked gui certificate and parameters for sso given gui authorization for user still i am facing the issue.

i ran the report through precalculation sever it is giving error input string is not in a correct Format.

My Bw system netweaver 2004s and

SAPKW70020-sap_bw patch level.

Please suggest

thanks

mahipal