Netbeans - ORA-01031: insufficient privileges

ORA-01031: insufficient privileges......I'm getting this error when accessing the indexes tab on a table. Can somone tell me how I should go about fixing this? I'm not executing any sql, I'm clicking the indexes tab after selecting a table. The table is owned by another schema/user but I've been given read rights to it. We just don't know what permissions this JDBC driver is using that it requires to make this work. has anyone had this problem before?