I come from a long history of using SW (since '95) but after the disaster of 2005 I discontinued my maintenance. Today I'm back for 2010.
As I was playing today I entered 4*12+6 in a dimension dialog box. SW told me to enter a valid number.
We've had math in dialog boxes forever. Not happy about this change at all. I often do some math in dialog boxes and not simple stuff like 2+2 either (which it also refuses to do.)