This looks like a syngonium. I have a similar one. This plant has done best for me when it is regularly watered.

Thanks a lot philofan. An image search on Google says you're right and gives it most probably as Syngonium podophyllum, arrowhead vine. From all the data I found on it, I might at least be able to keep it alive.

George

George
Looks like one of the Syngoniums to me also. they come in many colors and growth habits.
I'm sure you won't have this problem but I planted some in the shadehouse and it pops up everywhere lol.
Very attractive plant when small but as it climbs the leaves become a dull green and it will smother everything without constant pruning.
If you figure out a way to "kill" it please let me know lol gary