Patric, This problem has already been reported to NI, and the LabVIEW team is currently investigating a solution. From what I can tell, it looks like the problem occurs when trying to read a datatype that is not in the file. This will result in the misleading out of memory dialog. Make sure that you specify the correct data type to read. Other than that, I have no workaround information.
<a href=" http://digital.ni.com/public.nsf/websearch/B40EE671F772259286256BDE00544F8D?OpenDocument">How Do I Read and Write an N-Dimensional Array to a File in LabVIEW</a> Zvezdana S. National Instruments
