SMG has taken a like to beeping

I've just had my SMG Clutch replaced in my 330ci, after the replacement did the transmission teach-in, the clutch actuation teach-in and bled the hydraulic system all in Rheingold. Everything's working perfectly, no slip, naturally a lot more power than when I had a clutch which did slip but I've got a new quirk I can't figure out.

The SMG's giving a non-stop beep when I start the engine. I park with the SMG in R, or C depending on my mood and have to put it to neutral when cranking the engine. Going into Neutral, no worries, you can hear it snick into place, no errors on the dash - and then when starting it it gives out a non stop beeping (Same as the cold weather beep) without stopping until I put it back into gear, and then everything's fine again. No errors are stored in the car to indicate a fault.

The handbrake was adjusted and I know the SMG needs a lot of sensors like the bonnet ones to register as closed, handbrake etc, but the handbrake illumination dash light when pulling it up and letting it down is perfect so I don't believe that's causing it.

As I said, everything's working absolutely perfectly apart from the beeping. Any ideas?

It might be something that was accidentally coded in during your clutch swap:

Instruments - Cluster Beeps When Selecting REVERSE Gear
This Service Information bulletin supersedes S.I. 62 01 02 dated March 2002.
SUBJECT Instrument Cluster Beeps when Reverse Gear is Selected
MODEL E46 (3 Series), M3 with SMG
SITUATION After installing an (DWA) alarm system, or after recoding
the Kombi (Instrument Cluster), the kombi beeps continuously when
reverse gear is selected.
CAUSE Fault in coding data in DIS CD 28
CORRECTION
-Recode the Instrument Cluster using DIS CD 29.0 or later.
-Select Coding/Programming.
-Select option "3 ZCS/FA Coding"
-Select option "7 E46 3 series"
-Select "1 Recoding"
-Select "10 KOMBI"
-Select "2 Recode control unit"
-Follow the on-screen instructions.

Thanks RR - I'll take a look into that. It does beep coming from C to N to C again, so it's not just R. Might be related. I'll see what I can dig out. I can live with it for the moment anyway :)