program no longer compatible

[Liz]

On Mon, 22 Jul 2013 16:58:31 -0400
Derek Atkins <warlord at MIT.EDU> wrote:

> Well, what changed between Friday and now?
> 
> Did you install any system updates?
> Did you install any additional software?

My (limited) experience with Win7 on the work computers is that they
happily update themselves without requesting permission.
The OP may have no clue what the OS has done.