We are facing a couple of issues with SAP Enterprise Portal:
1. Even after changing the language preference in Enterprise portal, it's picking up windows system language.
2. When we are executing BEx 7.x queries on portal it's displaying only limited columns (example: 5). Whereas BEx. 3.x queries display upto 10 columns in single page. Is there any specific setting to be done in queries which will help us display maximum columns in one page?
check out the locale lookup rules , portal takes the languages according to these rules:
According to your description, portal takes the locale from request(browser locale).
Try to configure user locale or portal mandatory locale.