Forward Dependency Error In SQL Server Reporting Services Table Names

Hi

I am creating a report on a database where some of the table names start
with the @ sign - ie @table1.

Reporting services picks this up as a parameter, instead of a table name in
my query, even though I am encapsulating the table name in square brackets
eg. [@table1]

I have several data sets in the report that i am using to populate valid
parameters. These datasets are all variations of queries from tables that
have @ as the first character.

When i then try to run the report i get an error message as follows:
"The report parameter pool has a default value or a valid value that depends
on the report parameter SD_POOLCONTRACTS. Forward dependencies are not valid"

This is frustrating as SD_POOLCONTRACTS is not a report parameter but one of
the database tables that has @ for it's first character.

here is the query that i use to obtain the valid values for the pool report
parameter that i am trying to set up.

SELECT distinct u_poolcode as Pool
FROM OCRD INNER JOIN
OCRG ON OCRD.GroupCode = OCRG.GroupCode INNER JOIN
CRD1 ON OCRD.CardCode = CRD1.CardCode inner JOIN
[@SD_POOLCONTRACT] INNER JOIN
[@SD_POOLCONTRCT_LINE] ON [@SD_POOLCONTRACT].DocEntry
= [@SD_POOLCONTRCT_LINE].DocEntry INNER JOIN
[@SD_CONTRACTS] ON [@SD_POOLCONTRCT_LINE].U_DocNo =
[@SD_CONTRACTS].DocNum ON
case when len(ocrd.fathercard) = 0 then ocrd.cardcode
else ISNULL(OCRD.FatherCard, OCRD.CardCode) end = [@SD_CONTRACTS].U_CardCode
WHERE (OCRD.CardType = 'c') AND (OCRG.GroupName LIKE N'producer%') AND
(CRD1.AdresType = 'b')
ORDER BY OCRG.GroupName, FatherCard, OCRD.CardCode

Any help would be appreciated.