{SOLVED} login screen fault

[transadd]

Hi
Running Sparky seven having run Sparky six for a considerable time with no problems on the same computer.
At the login screen if I do not type my password quickly the display is trashed.
I can still continue to type my password and the system will login.
Everything  works as normal when logged in so this is not a problem, but it does not look good if I am showing somebody else Sparky.

Regards john

Since starting this I have noticed one or two other distros give an odd flash when booting although not as persistent. I assume therefore It may be a problem with my video board and therefore have marked as SOLVED.

Thanks to all those who took the time to read topic.

Regards john