Hi,
Ok, point 1;
- Are you inserting the graphic onto the layout or into a field? PNG is definitely a supported format, and I haven't heard of this issue before. It sounds a bit like this one;
http://tinyurl.com/7f2xlpx
Point 2;
- Dropbox is another way of Syncing data from FileMaker Go to desktop, however you must OPEN the file prior to losing connection. Once open you can lose connectivity. When you get your connection back it will re-sync with the stored version.
Hope that helps.
James
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James Chiswell Jones
Project Manager/Developer
Igeek
Web: http://igeek.co.ukBlog: http://www.igeek.co.uk/blog
Twitter: @igeekUK