Graphics Problem with C-182 Panel

I bought the Carenado C-182 RG about a week ago and it has been flying fine except tonight when I clicked on the autopilot master switch to turn it off all the front panels in the radio stack down to the autopilot panel seemed to split in two horizontally and it looked like I had half of each radio panel doubled on top of each other. I also had a line splitting the fuel gauge panel. The only way to correct it was to reselect the plane. Any ideas what caused this and how to avoid it again? I have a i7-920 2.67 ghz processor, GTX-275 1792 mb video card, and 12 gig Corsair DDR3 1600 ram. Thanks. Tom