Avid Xpress Pro-Media Composer and Transitions
Transitions are a part of our daily editing lives. There are several pitfalls when making your edit decisions but the main error you need to be aware of is having enough handles to edit your footage. As with FCP you need to have enough footage left over on the incoming shot and the outgoing shot to create any kind of transition. Fades, dissolves, dips and so on require the amount of footage you are requesting in your transition. Avid has a great graphical representation of this in every quick transition that you perform. If you have enough handle or if you need to make more handle it is very obvious to see. (I will cover how to fix this in the future.) Compare these two graphics and see for yourself an edit with plenty of handle and one with none on the outgoing shot.

