> Begin globals
> dim as str255 gC1
> end globals
> 
> local fn showvoltage
> dim as str255 c
> dim as short nCharsReady,pPos
> 
> nCharsReady = lof (-1)
> read #-1,c;nCharsReady
> gc1 = gc1 + c

Ted,

Just a guess here at a potential problem.

Your defining "gC1" then using "gc1" internally.

All the code gets converted into "C" which is case sensitive so the two variables are actually different.

Again, just a guess.

Max
