Hi Luke,
Moved to the SDK forum.
Any reason is you may have the Verify Database options checked on. Or it could be your report is looking for the printer in the report across your domain.
Typically though if the Verify is checked on a one minute time out happens for ODBC data sources if the DSN is not available.
So need more info:
What version of CR Designer are you using?
What SDK and version are you using?
Don