I googled for "Bogus DHT Counts" and a lot of gamers have posted similar complaints.
DHT seems to stand for Defined Huffman Table. Huffman Tables are very commonly used in compression algorithms and other symbolic-handling routines.
I think that the "Bogus Counts" means that the Index value that the code tried to access the Table with was outside the range of the table. The code was trying to access an invalid address.
What kind of video cables are you using.
Your wording implies that it happened more than once. Did you try rebooting before changing the cable?
I found an interesting "JPEG Huffman Coding Tutorial": http://www.impulsead...man-coding.html which shows why programmers love the code-libraries that come with modern languages.