Issue/Bug with iProntoEdit V.2.6.3.0

I am experiencing a bug with ipronto edit as I am working on additional pages with further links/commands as the more I add, when I go back to my very first start up or HOME screen, ipronto edit has removed some of my buttons and instead replaces them with factory ones or even worse removes the macros that were previously added on that page??? So then I have to rebuild things all over again, thus possibly effecting other pages, until I check each one!

Has anyone experienced this? Are there MAX limits to pages? I only have 14 under home and 21 under a component. Is there a MAX to icf file size (Mine is only 3.02megs)? MAX to commands/macros? MAX to images used in configuration?

What is causing this???

Thanks...