Hi folks,
I suspect the problems with PerfectDisk and Acronis Disk Director are the same as those a number of us are facing with Retrospect 6.x / 7.x and Ghost 12 - I'd encourage those of you seeing this to try something like what I did, described here:
http://forum.avast.com/index.php?topic=81135.msg666107#msg666107...to see if you can confirm what's going on - if it's one problem that's breaking all of these products, one hopes it will be more likely to catch the development team's attention...
PS - For the record, based on several tests I've done since I last wrote, I can confirm that this does *not* happen with Acronis True Image Home 2010, Paragon Partition Manager 9, Norton Partition Magic 8, or Piriform Defraggler.
DS