I do not use system restore with time machine, but I too have gotten the message every two minutes of "running low on disk space" and although I'm not positive that this is a glitch, for I am running on a raid 10 that was set up as 160 gigs originally, that I resized to the full 320, I have been getting this error as well...I am not positive that this is a bug, for I do not know if the resizing actually took effect on the raid level...win 7 in computer and drive partitioners show the full 320, but on occasion, while copying or moving files to / from my 320 win 7 drive, teracopy has stopped saying no disk space... but I closed time machine, and now it seems to be working, however, I am only downloading a 1.7 gig win 7 automated installation iso to be safe, but it is working fine, and I am really only copying all of my important data ( about 150 gigs of media from a 320 data deticated raid, and some important data from my win7 drive) and I am sending them to my 1tb external, but other than the comodo nagging, I seem to be fine...
but it is throwing the *error* of "running low on disk space"... any ideas here??