Hi. I have seen this error some time ago, and I believe it was a file naming issue. When this happened, were you adding images to your site? Have you recently made a new page, or chaged a logo? I ask because if you added an image, and it's name had a space between words or a special character, like ^ or * or \ in the name, that could cause a problem and vsd won't be able to complete the code for the page.
An image named:
image_1_big.jpg
is named properly, as underscores are fine to use, but an image named:
image 1 & large .jpg.
is not. Note the spaces, the & and even a . after .jpg
The same goes for page names and any other file you use, like flash.
Check for all those things and fix them then rebuild your page or take the images off then put the ones with corrected names back on and it might work?
E-Learning Specialist
www.mainsites.ca is my website, and yes, some of it is crappy.