Sybase provider support transaction capabilities?

Hi,

I created a DTS package in MS SQL 7 to extract data from Sybase database.
I have set "join transaction if present" and "rollback if transaction failure" to true and enabled "use transaction" in the package. Then, when I run it, error dialog displayed in the first step. But, if I disabled "use transaction" in the package, no error occur.

Please help, thanks!

Boris