Just for information, I have the Windows 7 x64 RTM build installed now, and the problem is the same.
I have abandoned running Impression on Windows 7, and run it in a Windows XP Pro Virtual Machine instead. I will wait for a fix from Autodesk before trying it again.
I agree - the silence and lack of updates is odd. I am so impressed with Windows 7 that I intend to update our 3 Vista workstations ASAP, but all of them use Impression now and then and I don't want to install VMWare just to run a virtual XP machine for Impression.
I am sure Impression is still being developed, version 3 has only recently been released...
Is anyone from Autodesk reading this and able to comment?