Cannot retrieve purchased download from Paypal

[zucccchini]

I hope someone can help me.  I have developed my site and have entered many items but upon check-out the link from Paypal BACK to the PAID FOR download is not operating.   Customer gets a 404 error.  What am I missing here?

Thank you for your time if you have any suggestions or answers.

[sulphur]

First of all, always assume its YOUR problem rather then the Web host or PayPal unless you have prove...because they will.   I am assuming you have completed the Pay Pal preference page in your account, made an error and tried to fix it by highlight and delete or clear and paste...or maybe an unusual character got in there you just cannot see.  You need to remove it all and start all over with a brand new page.  The 'auto return' URL space has been corrupted.  At least that has been my experience.  Just wipe it all clean and start all over.

Hope this helps