problem connection Reporting services if change development server

Dear All..

I have develop reporting services 2005 with cube access in Server A.
because any problem in server A. i have copy all solution in server B.
all report in reporting services solution in server B cannot open mdx statement that i have write in RS solution in server A.
If i click data tab in one of report in RS, the mdx script have i write is gone and RS open wizard to make new mdx script again.
How to solve this problem.

any one help me...

thanks

Yudhi
Hai ALL,

I found what problem it is,
the problem is different of SP (service pack). i use service pack 2 in server A and service pack 1 in server B.

thanks all