I've just rebuilt my front calipers and have bled them thoroughly. However the brake light on the gauge is flashing constantly.

Do i have to bleed the rears too?

It didn't flash before i rebuilt the calipers

Did you press the reset button on the master cylinder?
http://www.914world.com/bbs2/index.php?showtopic=293708

Thanks for the info. It's sorted now

Yes to the reset button and yes to bleeding the rears....rears first then fronts. Always start with the caliper farthest from the Master cylinder.