Accessing Sybase via Linked Server (Joins and Stored Procedures)

I have a Linked Server setup on SQL Server 2005.  It is linked to a Sybase database (Adaptive Server Enterprise/12.5.0.3).  I’m trying to either do a join on the linked server OR call a stored procedure and pass a string…  I can successfully do both of these things locally in Sybase, but not via the linked server.

Here’s my join that runs fine in Sybase, but fails with linked server in SQL Server:
select distinct ev.EQUIPNAME, dv.DETAILNAME
from  DTICDW1.uptime_new.dbo.EQUIPVAL ev,  DTICDW1.uptime_new.dbo.MFGUNIT m,  DTICDW1.uptime_new.dbo.DETAILVAL dv
Where m.MFGNM like 'Cam P140%'
And m.MFGID = ev.MFGID
And ev.EQUIPID = dv.EQUIPID

The error is:
Msg 7320, Level 16, State 2, Line 1
Cannot execute the query "SELECT Col1021,Tbl1005.DETAILNAME Col1011 FROM uptime_new.dbo.DETAILVAL Tbl1005,(SELECT Tbl1001.MFGID Col1019,Tbl1001.EQUIPID Col1020,Tbl1001.EQUIPNAME Col1021,Col1014,Col1015,Tbl1001.BUID Col1018,Col1013 FROM (SELECT Tbl1003.MFGID Col1014,Tbl1003.MFGNM Col1015,Tbl1003.BUID Col1013 FROM uptime_new.dbo.MFGUNIT Tbl1003 WHERE Tbl1003.MFGNM like 'Cam P140%') Qry1016,uptime_new.dbo.EQUIPVAL Tbl1001 WHERE Col1014=Tbl1001.MFGID) Qry1022 WHERE Col1020=Tbl1005.EQUIPID GROUP BY Col1021,Tbl1005.DETAILNAME" against OLE DB provider "ASEOLEDB" for linked server "DTICDW1".

So, I tried putting it in a stored procedure and calling that.  Here’s the stored procedure:

CREATE PROCEDURE SP_AUDB_RetrieveEquipment
                (@MFGNM VARCHAR(100))

WITH RECOMPILE
AS
    BEGIN
        select distinct ev.EQUIPNAME, dv.DETAILNAME
        from EQUIPVAL ev, MFGUNIT m, DETAILVAL dv
        Where m.MFGNM like @MFGNM  
        And m.MFGID = ev.MFGID
        And ev.EQUIPID = dv.EQUIPID
    END

Again, I can run the stored proc from Sybase with this statement:
execute dbo.SP_AUDB_RetrieveEquipment 'Cam BCF%'

But, when I try to execute from SQL Server via the linked server:

Exec DTICDW1.uptime_new.dbo.SP_AUDB_RetrieveEquipment 'Cam BCF%'

I get this error:
Msg 7212, Level 17, State 1, Line 1
Could not execute procedure 'SP_AUDB_RetrieveEquipment' on remote server 'DTICDW1'.

Any help would be appreciated!