Basically I need to move V1 on the sequence back 5 frames.

Normally, I use the yellow trim tool for this. However, when I press the yellow trim tool (also next to "P" on the keyboard) with only V1 selected.. and punch in -5 frames on the keypad, it gives the end of the sequence an extra 5 frames.

Instead, it should be pushing the video back 5 frames but it's adding them to the end of the sequence.

Any idea on how to solve this? It's so annoying! 

Thanks! 

When has this behaviour changed? Have you updated since?

Try resetting your avid user profile

Perhaps a silly question, but there are 5 frames at the head to trim back to?

bonang:

but there are 5 frames at the head to trim back to?

Another possibility could be to Insert 5 frames of black media to all other tracks. Then if you want to maintain timecode of the original sequence select ALL tracks and Cut 5 frames from them.