What is your OS?
What version of DW?
What version of MySQLi is installed?
Do you have other extensions installed? if so what are the versions?
can you send a screen shot of the error please.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.