Pcmcia Isdn Dell D600

Hi Hope someone can assist.
I just bought new D600 with factory installed WinXP SP1 Home version.
I loaded Duxbury ISDN PCMCIA card using software provided.
After connecting to ISP for approx 20 min, I receive BSOD with notification, Error msg, DRIVER_IRQL_NOT_LESS_OR _EQUAL
and something about File TA128...
I've checked Mnf web site loaded applicable drivers, same result.
I then loaded PCMCIA mnf by Microcom loaded their applicable drivers, same result, loaded drivers from Web Site, same result.
I checked with both mnfs and Microsoft, none can give other advice than "update driversâ€, which has been done many times
Any suggestions and assistance would be most appreciated
Thanks

 

I'd send that puppy back and get a different machine. Had a customer with a slower than slow Dell laptop not long ago and couldn't figure out why it was running so slow. Cleaned everything up, doubled the installed memory and still ran like a dog. Ran the service tag and started doing some snooping - seems like this was one of 20,000+ with a defective motherboard that had been recalled. Just one problem - Dell neglected to tell her.