When configuring or editing a general ledger account system, users can define segment mappings by entering the specific numeric values for those segments, which are then used to build account numbers. When attempting to map segments, a list of all existing segments is loaded. When that list is particularly large, the page may load out before it loads, preventing users from being able to view the list or add additional mappings for segments.
Download and install the latest patch, which contains all fixes from previous patches. If you are running an older version, download and install the latest version and then the patch.