John, I just checked, it has got the version 2.01 roms in it. the roms are dated april 1998.

Ask your mate if he has selected the "Adult audio" in the menu. It has the vigorous noises of an adult lady being charmed in the back seat of the viper, if u know what i mean. I am sure he has correctly chosen the correct setting in the menu to have the "glow balls" installed. It apparently, sets the coils or flipper strength a certain way, since the glow balls weigh quite a bit less than standard silver balls. I am sure your friend cleans the yellow glow balls with Gumption, cause it is the only product i have found that makes the balls very very clean.

Yeh, i love Viper Night Drivin, its like having 2 machines in one when the multiball kicks in with only the black lights going. Really like 2 x different machines.

I would be interested to hear what ya mate thinks of the different setings and if he thinks the same way as i do about Viper being a definate keeper.  

link below for others to view, regards, Brett
http://www.ipdb.org/showpic.pl?id=4359&picno=3372&zoom=1