Hp latop crash occasion

[gow75]

I have a hpG60 laptop with Windows vista home premium on it. I am trying to figure out what could be causing this BSOD. please see the jpg pic. the user is utilizing an external MS mouse as well maybe that is the issue. thanks

 

[gow75]

it has been running fine, nothing installed lately except for avg 2011 but this started happening before that.