welcome to PT sknash!!!...does Beau pee in same place on linoleum???...if so try putting litter box there just to see if he'll trust it...it may be that the electric one scared him so bad somehow, that he distrusts anything that resembles it...call your vet and find out if they know of an animal behavior specialist and try contacting them...hope this is a little help...keep us posted!!!...and pics of your cat family would be nice as well... ...goodluck!!!