PayPal - multiple domains?

[wpweaver]

I need to use my PayPal account to create payment buttons on more than one domain. On one domain, for example, I want a donate button for my free software. This button code is already widely being used in the free software.

I'm also trying to use the same account with s2member to collect a membership fee.

I looked at the s2member log, and it has transactions both from the membership fee, and from the donations. The donations log shows error codes - including a failure to validate the domaine name.

I do seem to be geting the donations, but I'm uneasy seeing error codes.

Is it possible to have payment buttons running off two different domains without confusing s2member?

[Cristián Lávaque]

Could you please show us the code for the buttons and the log entries for those transactions (x'ing out private data)? Thanks.