Same here with Powerdesk. I was still using version 8.5 - have been for a long time. This morning it gets a virus warning and is moved to the Virus Chest by Avast. I flagged it as a false positive and sent in the report.
I then decided to take advantage of my $14 upgrade offer to version 9.
I got several more Avast virus reports during the UnInstall of Powerdesk version 8.5
Then, I got several new Avast virus reports upon Installation of Powerdesk version 9.
Now when I attempt to run Powerdesk version 9, is is reported as a virus by Avast and put in the Virus Chest by Avast.
I have submitted the False Positive report on the version 9 of Powerdesk too.
I hope you can fix this soon - I love my Powerdesk app!