I cannot open the mail app on my ipad

HI all,

i am having problems with my iPad 2 when using mail. It all worked fine until today.

when a new email arrives the icon shows waiting mail. When I open the mail app it shows a blank screen with the normal boxes in but no text and no email. After approx 10 seconds the screen fades to black and then goes back to the home screen. See image below.

i have tried doing a reset but it make no difference.

any help much appreciated.

thanks

Chris