Acrobat producing erroneous file links when converting html href to PDF

I am having a problem regarding href handing when converting html files to PDF files using Acrobat.  My html file has a thumbnail image with an href link to a larger image.  The images and the html file are all in the same directory, let’s call it ‘foo’.  The href is simply: <a href="somefile.JPG">. 

When I create a PDF file from this html file using Google Chrome, everything works fine.  But when I use Acrobat, the file path is wrong.  The problem is easy to see.  The colon is being left off the drive identifier.  So when I click on the thumbnail in Acrobat, the link fails because it is looking for: file:///C/foo/somefile.JPG (colon missing), when it should be looking for file:///C:/foo/somefile.JPG (colon found).

I was using Acrobat for a few days and it seemed to be working fine.  But now every attempt to convert html files with hrefs to images produces this error (due to the ‘C’ not ‘C:’ issue).  I’ve searched extensively for a solution.  No luck.  Any ideas on how to correct this issue?  Thank you.