1) When I checked for a new beta from the editor it reported none available but manual entry of strings downloaded it for me.
2) I ran two batch tests on previously validated content which sits on a staging server, IIS.
Batch test 1.
1) 91 targets, mostly aspx, a fair number of css and few htm's.
2) I got 22 pages with errors from these.
3) The first bunch were aspx's which had 1 or 2 additional characters appended to the real content of the file.
4) A css errored. From the report it had approximately doubled in size. All errors after the end of the real file. The messages suggested that a mangled version of the original file (maybe first few characters on each line missing) had been appended to the real file.
5) Another css errored. It was 36 lines long but reported errors between lines 165 and 211. Interestingly that range is similar to the size of the real file.
6) One aspx of 89 lines showed errors in lines 89 to 97. The details indicated that unique content from a file 9 positions earlier in the batch list was present. That earlier page had not been flagged with any errors.
7) I saw 91 docs, 22 errors and thought, that looks like 1 in 4. I didn't find a regularity in the order from the "check list" however. Errors were found at 1, 6, 12, 13, 25, 26, 32, 58, 59, 61, 66, 67, 68, 70, 72, 74, 75... which isn't an obviously regular pattern.
9) I noticed the progress indicators for pages and link checking. Really useful to see what's going on. (I haven't noticed those before, are they some of the changes you mention in the change log?)
10) These checks were on a freshly installed version, and happened immediately after it was started.
Batch test 2.
1) 9 files, all html.
2) 4 files came up with errors. All had a single additional character appended at the end of the file.
Maybe the checker is looking at text that sometimes exceeds the size of the real file. The latter part of that text, in one case, clearly came from another page in the check list. In a css file, the checked text may have been mangled a bit then appended to itself.
I have not run exhaustive checks to see where it all came from.



