Trading account not balanced

[Miguel Guedes]

Hello list,

I have a few dozen transactions involving two foreign currencies and
have just noticed that the Trading account (and CURRENCY) is showing a
negative value.  Shouldn't it be perfectly balanced?  If so, how do I go
about looking for the transaction(s) at fault and fixing the imbalance?
 Interestingly, the imbalance increased from -5.40 to -200.36 when I
updated the exchange rate of the two currencies.

Many thanks!

Miguel