wifeinmidlife- So after about 20 minutes of looking at your code and trying different things, I figured out your problem. 🙂 Here's probably what's happening, how to fix it, and some info on finding solutions to things like this in the future.
First, what's (probably) happening. When you have a non-US account, unless you specify a different language, our system is supposed to default to the checkout language of the PayPal account making the payment. In this case, something in your 3rd party cart must be passing a more stringent version of this information which is why it's keeping it in Spanish (since your PayPal account is Spanish, the system's basing the check out on your account, not the person making the payment). Chrome is a little different because it has a built in auto-translate feature that's turning the Spanish to English (ironically one of the few times that PayPal and Chrome work well together).
Now, the solution! In the middle of your button code (and if you have a web-programmer, you may want to get them involved in this), you need to add: <input type="hidden" name="lc" value="US">
This will force the system to output the checkout page in English. Of course, if a non-English customer goes to pay for something, the checkout will remain in English. So if that's a problem, you may want to speak with your 3rd party cart to see what's causing the problem from their end.
Third, how I found this information. We have a Website Payments Standard Integration Guide. This is essentially our button manual. Everything (pretty much) you need to know about creating and coding a button through PayPal is in here. X.com is also a great resource if you need technical assistance.
So, I hope that helps you out. If you have any questions, feel free to post back and we'll see what we can do. But I tried that line of code, and it worked!
Andy
