More of a techie question rather than a question based on school work, but this still seemed like the most appropriate place for it (apologies if it isn't ^^)

Now that work knows I can use photoshop at a desirable level that happens to be what I'm now doing. But I'm running into a problem with the Scratch Disks. It was previously just set to C:\ which is now full so on program start I switched the disks over to my other more empty drives.

However it continuously keeps resetting itself back to C:\ and it's bugging the hell out of me. I've set it in the preferences incase it wasn't storing at startup and I've just this moment done a good ol' re-install and still no luck.

Anyone got any ideas as to why Photoshop keeps using C:\ for a scratch disk on load? The IT guys aren't gonna fix it till after xmas, and that's waaaaaay too long for me ^^