Hi,
Bobby, you can fix the file yourself like the others say. Open it in a text editor and see if there's something odd looking at line 646. You may find there are also other lines which have problems the next time you load the file. However, if you're not familiar with XML or having other trouble, please email me the file at:
jomeder@planetside.co.uk
I'd be interested to see what the problem was. I fixed a file for someone the other day who was having a similar problem. What had happened in that case was that a path to an image had been messed up somehow, there was an extra quote in the path which was causing the problems.
Regards,
Jo