The MS CRM 4.0 standard reports "Order", "Quote" and "Invoice" do not work offline (but they work online). The reason these reports not working offline is that a prefiltering with multivalue parameters is used and the Offline reporting does not support multivalue parameters. According to Microsoft Support this bug will not be solved in CRM V4 anymore. And it is not sure whether this report will be fixed in V5.

Requirement: This known bug should be solved asap within V4. These reports are needed as well in the offline scenario. Especially when a document about the order (Quote or Invoice) need to be handed over to the client as a confirmation about business!