No good I tried using /tmp/cache_fluid_89234 and other absolute paths with random names trying to get Blender to re-bake everything but it still will not.
After a while or a couple of tries at bake, the fluid domain will not bake at all (no frames will bake, it remains a rectangle on all frames).
I tried this on a brand new scene, an icosphere set to inflow and a plane below it as an outflow, then I use quick fluid.
Sometimes the first time around it will bake, but the second or third it will never bake.
Deleting the cache does not work.
Changing the path of the fluid domain’s cache does not work (even on absolute paths).
I tried this on a couple versions of blender; 2.70, 2.71, 2.63, it’s always the same problem.
I’m absolutely sure it’s a bug, ad perhaps a simple one where Blender just won’t clear a cache.
I’m not sure exactly how to file a bug or where to file a bug for Blender though.
EDIT:
I tried baking fluid on Mac with Blender 2.70, it’s basically the same problem.
The first time it bakes a few frames, then subsequently it bakes fewer and fewer frames until it bakes none and you only see the fluid domain cube as a cube on all frames.
No matter how low or high the resolution, it just won’t bake, the progress bar does show for a short period but then goes away as if it was done baking.
I seriously think this is a bug.