Button Issue-white box appearing

I was working in a current program of mine this morning and everything was great. I then made a wording change on the page and republished it to HTML format to continue testing. I noticed upon republishing that a white box has appeared around my navigation arrows, exit and home buttons. I did not do anything to these buttons before I republished so I am curious as to what has happened. I have used these same white arrow, home and exit buttons for two years. They were button selections in Lectora 2006 and older and some how were dropped in the button wizard from 2007 going forward; so I made them library objects so that I could continue to use them going forward to help standardize my training programs. They have always worked just fine and never had a "box" around them before this morning. I tried republishing the program again thinking it was some weird fluke and they are still there. I have gone to other people's computers thinking it was me, but again they are still there. I tried inserting a new button from my library and it happens with it as well. If I publish to EXE they aren't there nor are they around the buttons in preview mode. However, I must publish to HTML for our intranet.Any ideas on what happened because it is driving me crazy trying to get the boxes to go away and I don't want to have to stop using this style of button as it will ruin my standardization of programs. I have completed many programs using them and to have to go "fix" these buttons every time I make a change to a program will be very time-consuming; especially if I have to replace every button in every program with new ones to get rid of the phantom boxes around them.Thanks

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