My car was doing the same thing a few months back. Each time I pulled away from a halt sign, the hand brake light would come on. At first it just flashed briefly but then it came on for longer periods of time. I checked the fluid and it was at correct level.
It turned out to be the rear pads needed replacing. I had the discs and pads replaced all round (they were in desperate need) and now the problem has gone away. Check your rear pads, it could be as simple as that.
When my clutch cylinder failed I lost the pedal, it just failed to come back down after I pressed it in. Bit of a shock driving along with no means of disconecting the clutch. New cylinder cost £40 from Alfa dealer. Only £25 from motor factors though but they couldn't get one straight away, so I had to go to the dealer
dear christian and guyz above,
same happened to me today! accelerating quickly (as always) and a red flash on the dash but went out before i could see which light it was, i'll keep an eye out and try your suggested remedies if need be