VISA resource not listing options

[SRPtip]

I have a .VI that works fine on my windows 7 computer. When I move the arduino to my windows 8 computer, the VISA resource for the Arduino init icon does not recognize com ports. Only option is refresh. It shows on my devices as Arduino Uno (COM5) but not seen on the control or constant.   I don't believe it is an Arduino specific issue. Any thoughts or suggestions?   Thanks.

[Dennis_Knutson · Accepted solution]

Did you install NI-VISA? Does the port appear in MAX?

[SRPtip]

Thanks. Don't remeber having to install Visa on my previous computer.