I've been trying for two weeks to make this work and I simply can't. I've got two GTX 670's in SLI running surround on three monitors ... that works fine.

Added a 4th monitor (HP L2206tm touchscreen) tried display port, usb, and DVI connection and no matter what I do can't get the touchscreen to work. The Monitor works but not touch. Running Window 7 Pro 64bit and I don't have tablet PC in control panel, system screen shows no touch or pen monitor installed. I simply don't know what else to try or do to get the touchscreen working, I know many here are using a setup like this so wondering how you connected it and what you did to make it work?

Thanks
- Rick


Things I've tried
- windows features - turn off reboot and turn back on tablet pc features
- run troubleshooter on monitor devices
- Install driver monitors
- Run monitors to various connectors on both cards
- Disable Surround and set touchscreen as primary

the touch part is usually done through USB.

Thanks for that feedback, I too saw that in the user guide but forgot to mention it in my post. So right now I have the monitor connected with both display port cable and upstream usb connector, the only thing is I have a usb hub and the usb is plugged in to the hub and the hub to the computer, otherwise I can't make the cable reach. So I've got the usb upstream to usb connected. I would think that should still work. No go on the touchscreen portion though.