I'm new and I'll start by helping w/ IPL on Nano if you already have it on.
Here is my tut

This should make the Audio and Video Sync on the Nano everytime w/o restarting. IPL installed first.

1. Make a .txt file w/ notepad
2. Name it clear.txt
3. Rename it clear.avi
4. Put it in your videos folder or wherever you store videos...
5. Then, disconnect your iPod. Start Linux and play a video (The Audio/Video is probably off, am I right?) (You don't have to play the whole thing btw)
6. Play the file "clear.avi" (Nothing's supposed to happen)
7. Now, play another video and the sound is perfectly lined up with the video.....

If you play "clear.avi" every time before a song your problem will be gone forever.....

PS will work everytime you do a vid song or anything, just make sure you do clear.avi everytime though.