automation lanes missing?

Hi, I’ve got a project I’m working on that I put a tiny bit of automation on. For some reason now I can’t open any automation lanes at all. I closed it, started a new project and I can open them in that one. Any ideas as to what I’m doing wrong in the project?

Thanks in advance

Have you used any visibility commands?
It can screw up your automation, making it impossible to view; symptoms and workaround here:
http://www.steinberg.net/forums/viewtopic.php?f=181&t=53775

good luck