#599 Latest beta run button give single step iteration

[Steve Keen]

So back to the drawing board with this one! :) I hope it's not a windoze-specific bug.

[High Performance Coder]

Oh what a difference a semicolon makes! It was:
after $d {if {$running} {step;} simulate}
and it should have been
after $d {if {$running} {step;}; simulate}