When asking the Melnorme why their bridge turns purple the text says the cost of the answer costs 12,000 credits while the speech goes "twelve million credits"
When buying auto-aim modules, the text reads "never add more than 3 to ship". A minor grammatical mistake, should read "never add more than 3 to
a ship". The speech is grammatically correct.
The Melnorme trader occassionally repeats 'requires additional credits' when trying to buy something that costs more than your available balance.
When taking to the Pkunk on their homeworld, they say something like let's form an alliance, we will provide ships, resources "and materials that you desire". In the speech version, the word "that" is not spoken.
BTW I absolutely love the speech. It totally gives the game a new flavor and makes listening to the same old yarn fascinating
