As Roel says, it has been mentioned elsewhere, longest thread, I think, here:
As yet I’ve not, however, seen any acknowledgement from Steinberg that it is an issue, presumably as it does not happen on all Windows machines (only on one of mine for instance). I think it’s mainly an NVIDIA issue but not certain of that either.
I’m using the following as a semi-soltuion: Go to Preferences-Record-Audio and un-tick “Record Audio images during Record” then at least after recording the Waveform images do show up…still not ideal but better than nothing I think.