Johnboy,
When you say "hood-lining" you're talking about what we call the headliner, the interior part covering the inside of the roof, right? The fabric is probably glued to a backer board that has a foam cover, then tucked into the edges and your glue is coming loose with time or the foam has broken down. If you can take it out without too much trouble, you might be able to reattach the fabric with a spray aerosol contact cement like one from 3M - most auto parts stores have a general spray glue suitable for interior material. Light spray on the fabric, a bit heavier on the base and get it back down smooth. Best I can suggest...