Real Bad Bengal Cat Misbehaviour?

well i’ve told him, I’ve even given him a good spraying when he jumps on my pc. and now, just because the printer was on, he came running on my desk, i take him off, comes running back on, took him off and then when i shut off my printer he came jumping on my pc and almost made it fall just like 1 of the colums we “had” in witch he broke just by jumping on. eversince i’ve been spraying him bad, telling him no, just to keep him safe from jumping on my pc and making it fall just like the colum eccept the pc would have cost us beyond a thousand. what am i gonna do now, our other bengal is well behaved, say no once and she get’s it. him, he just keeps trying, without paying any expenses, what can i do to make him stop once and for all?
and by the way, i can’t put my pc on the floor near a wall, i taught of it but the only place i have for it is on my desk, vertically.