After 11 months of sterling work, my super-duper-take-anywhere USB dongle has, I'm afraid, died the death. One day, it was working fine, the next, nothing but delayed write errors and all manner of shenanigans 
I tried it on 3 different machines: XP (2 machines) and Vista with the same result. The auto run will flash through all the files, but once you click on the drive to look at the contents, it shows up as being a blank disk and would I like to format it!
Grrr!
Now, this dongle contains all my emails, documents, web design work, programming code, photos and even some work stuff (!), so losing all that data was not an option. However, I had backed it up religiously, so I knew I had a back-up approx 4 days old, leaving only the most recent work to recover. Trouble is, because the system kept seeing the dongle as blank, how was I to get at my data?
Out of desperation, I plugged it into my Linux box, running SimplyMepis and, guess what? Yep, it could read all my data and apps! Not wishing to chance anything, I copied the whole of the dongle to the PC. I unplugged the dongle then plugged it back in again, and it behaved exactly like the Windows machines: a blank disk.
During all this time, I had been checking out the Corsair forums and it turns out my woes are a known problem: the standard response being to send it in for a replacement. As far as I can tell, there is no reason/explanation given for the disk corruption. Given that this USB stick is among the best in class, I am extremely disappointed. Luckily, it has a ten year guarantee, so, at the time of writing, I am awaiting an RMA so that I can return it for replacement. Needless to say, my confidence in the replacement is not particularly high.
So, pleased that I had all my data safe and sound, I plugged it back into the Windows XP box and formatted it. Interestingly, even after doing that, the disk could not be written to or read from. Anyway, I then did a full secure erase to make sure that nothing could ever be recovered from it.
I now await the replacement with interest!