If you are having issues with software please make a post, or add to a existing post with the same issue in the Digispark Support section of this forum. Please provide the following:
Running System: OS X, Windows, Linux (what flavor)
Version: Windows 7 64bit? 32bit? OS X 10.7, 10.5, 10.8?
Computer: Dell Inspirion 2100, Mac Mini Late 2011 with i7
What the issue is.
If it is related to uploading code please provide what shows in the black box with orange text at the bottom of the Arduino window after you hit upload.
Ensure that you are testing with the Start example, so we can eliminate issues with homemade sketches.
Check back for solutions, I will do my best to provide quick support!
Thanks!
Erik