Clock/info display flashing "ign"

Hi guys,
A few days ago I noticed that sometimes my clock/info panel would flash "ign" (looks like the top part of 1, a 9 and the top part of a 0) where the temp and stuff would usually show. After a while it goes away, sometimes it doesn't. Nothing really feels wrong with the car but what is it trying to tell me?
Any ideas or info would be great.
Thanks
A few days ago I noticed that sometimes my clock/info panel would flash "ign" (looks like the top part of 1, a 9 and the top part of a 0) where the temp and stuff would usually show. After a while it goes away, sometimes it doesn't. Nothing really feels wrong with the car but what is it trying to tell me?
Any ideas or info would be great.
Thanks