vlookup avoiding #N/A

Hi!

If anybody know a way around this I'll be forever thankfull.

I have a standard list which uses vlookup to another list which varies. If there is not a match I get #N/A and that messes up my subtotals in the first list. I have tried variations with if, match and find but I can not make it work.

How can I get Excel to reply "" or 0 instead of #N/A?

N2=VLOOKUP(B2;Internal!B:C;2;FALSE)
N2=FD312 Insurance

Thanks in advance