You can try the following query:
select
v_obj.name as ViewName,
t_obj.name as SourceTable,
t_col.name as SourceColumn
from
sysobjects t_obj,
sysobjects v_obj,
sysdepends dep,
syscolumns t_col
where
v_obj.xtype = 'V'
and dep.id = v_obj.id
and dep.depid = t_obj.id
and t_obj.id = t_col.id
and dep.depnumber = t_col.colid
order by
v_obj.name,
t_obj.name,
t_col.name