Tech support tells me that my computer or operating system just must not be compatible with this monitor.

I suggested that rebooting my laptop could work, and tech support waited for me to reboot

, I have ordered online, at ViewSonic's telephone tech support suggestion, a mini display port to DVI adapter, for $17.48 including shipping

I had to call Viewsonic tech support to learn this

Tech support didn't offer any additional assistance other than "your computer must just not be compatible."UPDATE