Whenever I eject my DVD drive or unmount from a virtual drive I get the following error message:

"Exception Processing Message 0xc0000013 Parameters 0x7616023C 0x852E13A4 0x716023C 0x7616023C".

I use Vista, it didn't always happen, though I can't remember exactly when it started so don't know what caused it, anyone have an idea what it is? It's starting to bug the hell out of me.