Unable to click MoreInfo on job logs

This has happened on 2 different installs of Netvault Server and different versions as well, currently running, but when going through the job logs and i get an entry that says 'click more info...', you click the entry which will bring up the 'More Info' at the bottom and then start moving your cursor towards 'more info' but it will be greyed out before your cursor gets there.  The option to click the 'More Info' button seems to flash up and disappear a fraction of a second later.

Anyone seen this before?