Nero suddenly burns DVDs upside down

All of a sudden my Nero 6 (using NeroVision Express 2) is burning DVDs upside down and backwards. Regular avi files that work fine on a regular player. I've no idea what happened, it's been about 2 weeks since I've tried to burn a DVD. In that time, I have downloaded the K-Lite codec pack, but even when I removed that codec pack today, Nero was still acting up. I've reinstalled it, because I need the player on there, so I guess it can't be the codecs causing the problem. I'm not sure what it is though.

Has anyone else had this problem? What do I do?! I have uninstalled the program then reinstalled it, and it still has the problem.

Well... maybe it's really your computer with the problem? Sorry, I really don't know. Why don't you try dragging the files you want burned into the drive and burning them that way, or using WMP instead, to see if you get different results.

Try to update Nero to Nero 7.

Thats an idea, there were some updates for Viesion Express I've never installed on Nero's site. Maybe there's something that will magically fix this. :/

Maybe some configuration is wrong. You can try to update and see if fix it.