DSC light refuses to go OFF!!???

[Last5oh]

Here's the problem:

My battery died. I didn't get to use the X5 for 2 months (except for a washing and wax which was in and out of the garage). This afternoon when I opened the door, the courtesy lights did not go on. Stuck the key in, turned it NOTHING no lights, no clicking NOTHING.

Hooked-up a battery charger. At this point I tested the seat memory - still worked so maybe it didn't drain completely. I let the charger go for 5 hours. Went back into the car and it started with one click.

BUT the DSC light remains ON!!!!
The clock time reads --:--AM, but the radio station memory was retained.

I'm letting it charge overnight. I'll start it again in the morning. Any ideas on the DSC?