Splits in Cash Flow report

[Nowl]

Hello everyone

I'm fairly new to GnuCash, so please excuse me if this is a silly 
question, but I can't work out what is going wrong.

I use GC to do the accounts for a small charity and recently had to make 
up the end-of-year reports. I noticed something odd happening with Cash 
Flow reports and split transactions.

An example: I wrote a cheque withdrawing money from the current bank 
account to reimburse a committee member. This was split between the 
Exoenses:Meetings account (for refreshments) and 
Expenses:Newsletter:Postage account (for buying stamps). Everything 
shows correctly within GnuCash and the summary line correctly shows the 
split amount for whichever account is being viewed.

But the Cash Flow report is only correct if run for the account the 
money was actually taken from (current bank account). If run for 
Expenses:Newsletter:Postage, it shows the total for the entire 
transaction coming in to this account, then the amount assigned to the 
Meetings sub-account going out. Similarly, Cash Flow for 
Expenses:Meetings shows the whole amount coming in, and this account 
"paying" the Postage account, which it would never be used for!

Have I done something wrong, or is this a peculiarity of the way GC 
handles splits? I'd be very grateful for any pointers.

-- 
Nina