I'm running a fully updated version of VISTA Business on a Dell duo D830 with 2Gb RAM. The machine is clean: no nonsense applications.I purchased an MMX300G data card last month, and installed the drivers when prompted after inserting the device.I got a blue screen error. Thinking it was an anomaly, I cleared the software off, and started over.Long stoy => short: for the past month I have had blue screen crashes *every time* the driver loads. The error is difficult to catch, but it appears to be an interrupt between the memory loading while a request is still taking place.After the blue screen recovery boot, the device loads fine and I can run the datacard no trouble.But after shutting down the machine, on the next start, I will get a blue screen crash, regardless of whether the machine is started with the data card already inserted, or whther the machine fully boots, and then the datacard is loaded. No matter...as soon as the data card starts to run (and I have turned off the auto run) it will confilct with something and crash the machine.Any clues gratedully received!JB