Huawei E220 HSDPA USB modem Crashes Snow Leopard

Iv noticed that ever since updating to Snow Leopard, if I boot up the Macbook Pro with the Huawei E220 dongle in the usb port I can connect to it with no probs. However, if I pull out the dongle and insert it again in a usb port, the notebook immediately shut down. I then proceeded to install 64bit driver (Mobile Connect ver 4.15) and the same situation occurs. I can replicate the issue having booted up both in 32/64 bit modes and whether it is connected to the power supply or not.

I was not having this prob on the previous Leopard OS 10.5X. The Huawei website is not of much help and tried emailing them with no reply from them.

Any ideas?