I have just donwloaded an evaluation copy of the software and while scheduling a report as 'single schedule', I am encountering error at step no 4. After giving any format (PDF/CSV...), and on clicking of next button, an error message is displayed as:
Error Number: 91
Message : Object variable or with block variable not set.
You are missing one of the pre-requisites mentioned in the pre-requisites document which was installed with CRD.
You can see a list of these and where to get them halfway dwon the page at http://www.christiansteven.com/sup_req.htm
Read through it and ensure that you have installed all the things in the list. I suspect your problem here is to do with one of the following:
MDAC, MSJet, Crystal Runtime Comonents, .NET framework or user security levels and permissions on the Crystal Reports Distributor folder and subfiolfers and files.
I had this error yesterday using the latest build. What I did was I separated the report that has the error into a separate package and it went fine after that.