Phil,

Sorry that no one answered your post. Let me see if I can help you.
There are no download problems of which I am aware.

Still having the problem?
What version # of Avast are you using?
Free or Pro version?
What OS?
Please explain what “red box” are you referrring?
Any other information in this “red box”?
Have you tried a manual update or is the auto-download generating the error message?

techie