Yes, I was able to replicate the error exactly as you described it when running your first task "operations task". I love errors I can replicate!!
OK, so of course I expected as you did that it had something to do with the Verdana font. But it turns out, at least here, that it was to do with screen resolution. I looked in your drt file and saw that you had the session set to run on 640x480 display mode. I wondered if perhaps Windows7 was tried of accommodating such an old (albeit classic) display mode. So I changed it to 800x600 and then 1024x768 and it ran great in both with no errors. Personally, I would suggest 1024x768 or larger for you as I saw that some of your images are larger than 800x600. Of course, you can go as high as you like. Anyways, try it out and see if that resolves it on your end as well.
Note--I wondered if you tried samples that were set to run in 800x600 or 1024x768 mode. And that if you had chosen one of the few set to run in 640x480 whether you would have seen the same error. I also noticed that on the display properties here on my MacBook Pro w/ Windows 7 that the minimum resolution it will allow me is 800x600. So that may be part of it too if your system has a lower limit higher than 640x480. Let me know how it goes!
-Blair