[Ruthian23]

The problem with the trades crashing in the Career 2004 league that the game comes with, and in other various leagues I have creates, seems only to happen when:

One clicks the Trade Players box on the top
They choose the team that they wish to trade with.
They click Add Player
And they left click to scout the player and check his ratings.

Adding the player to the trade is fine, as is making the trade. It is simply scouting the players on either team while in the trade menu that makes the game crash. It says:

Ootp6 has caused an error in OOTP6.EXE
Ootp6 will now close.