Subscription Issue - Value cannot be null

[Steve Harclerode]

I"m fairly new to reporting services. I created a fairly simple report
recently, which runs fine.

Today I tried to create a subscription to it. Using the web interface,
I see an error message like the following when I click "New
Subscrtiption":

DEV: Acme Business Intelligence
Error
Value cannot be null. Parameter name: key

And when I try to create the subscription through Management Studio, I
see this once I click on the "Parameters" option in the "New Report
Subscription" dialog box:

TITLE: Microsoft SQL Server Management Studio
------------------------------

Value cannot be null.
Parameter name: key (mscorlib)

------------------------------
BUTTONS:

OK
------------------------------

I am using multi- select for one query parameter. And I'm running on
SQL 2005 SP3 (9.00.4035.00). Any ideas?

Thanks,

--
Steve Harclerode
To obtain my email addresses, remove all of the periods from my email
address (except 1).