can't run on win7

I had this installed before but now the online library requires that I reinstall.  Installs okay but won't run; immediately closes.  The event viewer indicates a problem with kernel.dll but I of course have no idea what the error means.  I tried turning off the firewall and reinstalling several times.

Faulting application name: DigitalEditions.exe, version: 4.0.2.0, time stamp: 0x546d3e57

Faulting module name: KERNELBASE.dll, version: 6.1.7601.18409, time stamp: 0x53159a86

Exception code: 0xe0434352

Application: DigitalEditions.exe

Framework Version: v4.0.30319

Description: The process was terminated due to an unhandled exception.

Exception Info: System.Xml.XmlException

Stack: