I have a problem using the online version that sometimes the plant info and the Vegtable sel windows disappear. They are there when it first gets loaded then sometimes dissappear. I have tried clicking on and off the radio buttons at the top as well as logging out and back in.

This is one problem that occassionally pops up.
The windos move off the screen and don't auto-locate back on the viewing area.
You garden is fixed and this problem has been addressed in the next version of Plangarden.
Let me know if you encountrer it again, and I will see if we can put in a better fix for this temporarily while the next version of Plangarden is finished and tested.

This has happened again I can not see the vegetable selector or the info tabs. Please fix once again.

MAC computer I downloaded to desktop, but can't open the program

To help you, I need to know a few things about what is wrong.

Does it work when you try it from the website? The website is the flash version of Plangarden that is the same as the MAC version. If it works from the site, then we can zero in on your machine.

What type of MAC do you have?
What happens when you try to run Plangarden from the MAC? Is there an error message?