Grenville Houser

I have these .dwg's that I am trying to import. It's the second lot from the same source and the first batch came in fine. I now keep getting OpenDWG Library Error 5 - does anyone know what this means. The window says the file is corrupt or missing data - they are the architect drawings for the new Roundhouse in London - so I doubt that is correct!

Purchase VW 9.0 about 12 months ago and it's been fine. Then all of a sudden it will only launch in Demo mode. Have tried re installing and on another machine. Have the registration number but still no joy. Only thinhg of note is that my dongle doesn't flash! Is it sick? grenville@outrageous.co.uk