I wrote a report using Crystal Reports XI linked to an Access database here C:\\MyData.mdb.
The report has one field (simplified for this example) and no sub-reports.
DOes this WePos thing have the correct right to read from to folder/location in your filesystem or do you need elevated rights or something to read from this location. Could be the same issue when you connect to a remote network folder. Then you also have to specify the credentials on that computer to get access to it. Does this make sense?