My Adobe Digital Editions won't open anymore

[mktompk]

I downloaded Adobe Digital Editions for a class that has an eTexbook. I used it just fine for the past 2 weeks, but it won't open anymore. This just started yesterday and I haven't gotten an error message or anything, it just won't load when I click on it. I tried reinstalling it, redownloading the eTextbook, and using a different computer, but I still can't get it to work. Any help would be great since I need this ASAP to do my homework!

[mariank2241739]

I have the same problem with digital editions. for about 3 weeks it worked fine, but now in won't open without any message at all!