What is this error message?

[agentjayd007]

So I got this error today.

"The exception unknown software exception (0xc0000005)
occurred in the application at location 0x10001c6b

Click on OK to terminate the program"

I started the game two minutes before I got this error message. I alt-entered to full screen, I got some other error message, and it closed down EQ. Then I started it back up, and I am getting this error each time...how do I get out of this?

Thank you!

**EDIT**

The first error message I got while trying to make it full screen said this

"ResetDevice() failed!"

and an OK button on the bottom...