Bluescreen when run a program on network

When I enter a network folder, such as "\\computername\", and double click
an exe file, a bluescreen suddenly occur, every time.

When I mount a virtual CD driver from other computer, the situation is
similar.

I remember that there wasn't such a problem when I just use this computer.
It begins on someday. And after restoring the system and installing SP1, the
problem remains the same.

Is it caused by some update of Windows Vista? Does everyone else meet the
same problem?