Hello every one

When trying to deploy cube with more then 3 partitions - got error message

Errors related to feature availability and configuration: Exceeded the
maximum number of partitions in a measure group. The installed server
editions allows not more than 3 partitions and not more than 1 writeback
partition.

What is the max amount of partitions on 64 bit machine per cube?
How can avoid getting the above error message?

I have SQL Server 2005 Standard Edition Installed on our Server.

Many thanks

Qazafi