file save as… commview ncf file format error

Dear Gentlemen,

Whenever I try to save my network Wireshark captures in Commview ncf file format, Wireshark raises an error message: "The capture file appears to be damaged or corrupt. (commview: unsupported encap:15)"

Wireshark is version 1.10.5

The OS I'm using is WIN7 X64, but I also tried the latest UBUNTU release, X64 version too, and got the same error.

Any help fixing this would be much appreciated. Thanks.