BSOD upon inserting xD card

[iau]

Hi,

I recently upgraded my T61 from 3GB to 4GB RAM (2+2 identical Lenovo RAM). After this I've not been able to insert any xD cards without a BSOD. I've had two different RAM-set with the same error. It worked fine when I had only 3GB RAM.

I've tried both xD cards of type H and M, and even an PCMCIA-card reader. SD-cards works fine in the same card readers. All driver updates from Lenovo have been installed.

I'm running Vista Business x64. At one time I believe I tried with a 32-bit system I had on a second HD without the problem, but can't verify that now.

Does anyone know what could cause this?

My T61 is a T7300 2GHz and (now) 4GB RAM. Any advice on what to do would be greatly appreciated.

Thanks in advance,
-iau