Web Objects behaving strangely.

Hi Everyone,

I'm quite new to Articulate Storyline 2 and would be very grateful for some advice.

I have a word document full of tables that I need to translate into  slide layers in an eLearning module.

My approach so far has been to format the information into something that looks like a table in Excel, save it as a .htm file, upload the .htm files to our Moodle LMS, and insert them as Web Objects to display 'in slide' and 'load automatically' in my slide layers.  To preview, I have published the SCORM package and uploaded that to the Moodle also.
My problem is that the .htm files are displaying erratically in my Articulate module / SCORM package . Sometimes they display fine, but when I scroll down, the Web Object 'faux table' becomes a garbled image, with parts of the .htm page staying put, and other parts scrolling.  Sometimes the Web Object also disappears entirely, or even displays for a little while before disappearing. 

Does anyone have any idea how I can get Articulate to display the .htm files consistently well?  Or failing that, how I could better display the information, which has to remain in columns and rows?

Thanks so much in advance for any help.