Several issues with new touch

Hey,

I recently purchased an iPod touch 2nd gen, but have been experiencing a few problems that I would like to fix. The first problem I noticed was concerning the sync'ing of artwork. Whenever I manually managed songs on my ipod, and added the artword directly to the songs already on the ipod, they would not display. The only way I can get it on there is to add it to songs in "My Library" and have itunes automatically sync my ipod. My second and third issue are somewhat related. Whenever I play a track after the ipod has been idle for a while, and press the lock button on top to turn the screen off, the song will stop after a few seconds, and I must unlock the touch and start the track again. Many of my songs also skip quite badly, though it's most noticeable on ones I have converted to Lossless. Anyone have an idea what the problem is? Do I have a bad iPod?
Thanks,

 

Do you happen to have a link to the thread, or know what it was called? I just went through the first couple of pages and didn't see anything on the subject. Maybe I'm blind. I will keep looking, but any help would be much appreciated!