On projects with the audio properties set to 48K sample rate, Vegas displays samples as if the sample rate were 44.1K.

To repeat:
Creat new project.
Set audio properties to 48K.
Insert new track and drop marker at 1 second point.
Change timeline to display samples.
Move cursor to marker. Clock should read 48000.
Now close project and re-open.
Move cursor to marker. Clock now reads 41000.

Joe
/staticwhitesound