>Dean,

>This won't help this time around, but in the future, publish "minimum" specs that your app is designed to run on and that it "may run" on other configurations. Then you can just recommend that they upgrade to get adequate speed performance out of your apps.

This is a good idea.

I do have hardware spec requirements and yes I have them sign it once they've seen it. However, I rarely turn down clients because of it. If their hardware is not up to snuff, I do warn them about the performance before I begain work for them.