XnView Software

In the drop down menu under graphics, it names the program Xnview Multi Platform. It is not listed as an "installed software" in USC. How should I remove this and try a reinstall?

Thanks

I'm using Ubuntu 10.04 and have just installed Xnview v1.70, but in Infos it says v1.80...but anyway, when I open Xnview the GUI, it is almost transparent. I can't see anything unless there is a dark area on my desktop. It was not like this when I used it in Windows. Is there a fix??

Thanks