I added a few guides early in a project in Illustrator CS 2. I started drawing some stuff in illustrator, then realized I had to change my guides. But I can't select them at all. I try clicking all over the area where I see the guideline, but nothing happens. It turned on/off lock guides, but no effect. I can add extra guide lines and select my new ones perfectly fine. But I just can't select my initial ones... What's going on?