I just tried IRFANVIEW, DSTeiNeuro's suggestion above, and it works Great with just pen input.
I have been a Vuepro user for years, but it does not work real well on a keyboardless CF-01 for slideshows because toggling in and out of full screen mode requires an escape key. I also tried Polyview, which is a very nice program indeed, but have not been able to figure outhow to end a slideshow without rebooting (Am I missing something.)
IRFanView is fast and lets you hide the mouse cursor as well as file names, and does nearly everything with mouse clicks. For the price its a great choice for the CF-01. If there is a way to end a continuous slideshow in Polyview it would be a nice alternative too.