Crystal Report XI R2 problem with two tables from TTX dataset

I have VS 2003 application using crystal report X. Everything works fine. But Crystal report X does have problem with Vista, so i am trying to move from Crystal Report X engine to Crystal report XI (11,5).

I use the Connection Field Definition Only and everything seems to work fine when I have included only one table on the report. My reports are a little complex so I need to include more than one table.

When I include 2 or more table (2 or more TTX files) and run the report, i get the following error:

The report you requested requires further information. and the login page for the second TTX.

Note: I am able to run the reports on the Crystal report XI but not on the Crystal report XI R2 (11.5).

Also using Crystal report XI on vista has another problem with DEP (Data Execution Prevention), so when I run the reports the application crashes.

I have searched and i did not find any helpful information.