In my case, I have a big 20MB database file which uses macros to do some big convoluted number crunching on pretty much all the data at once (mostly regression).

In 2003, it would take three or four seconds between programmed screen refreshes.

Recently I opted to let IT upgrade my PC to 2007 (seemed about time, especially since I keep receiving files in the new format). Now when I run the same file it takes TWENTY seconds per refresh!

That means I’ve gone from a five-minute-cup-of-coffee analysis to a go-do-something-else-for-half-an-hour analysis… which no doubt will actually take longer since now I won’t be keeping an eye on when it finishes! This is a huge step backwards in productivity!!!

I also noticed that it takes longer to load the database, and with 2003 I could rapidly switch back and forth between two versions of the database using CTRL-TAB to compare graphs of results… that’s no longer possible since it doesn’t draw the graphs until I let go of the keys and pause for a second. >:-(

Perhaps I could try saving in native 2007 format, but I’m not holding my breath for any miracles.

2007 also adds more syntax, which is going to slow down the processing engine.

2007 is a piece of crap.