Is there a setting to not check out all parts in a

It seems like 2009 PDM Enterprise has changed the default setting for when you are opening a assembly. When I try to open a assembly to veiw it, by default PDME trys to check the assembly and all the parts in it, I have to push the cancel button then open the file. Is there a setting to change the defaut to not try to check out all the parts when opening a assembly? I tried to contact our SolidWorks reseller MCAD, and the only guy that knows PDME is on vacation until the 23rd.