[R] x is not a open/high/low/close time series

[Dean Sonneborn]

I am trying to create a high low close style chart but I keep getting the 
following error statement; "x is not a open/high/low/close time 
series".  I've used the function is.ts and R responds TRUE but the 
ohlcPlot  function gives the above error statement. I'm actually planning 
to plot some odds ratios with their confidence intervals and the 
hi-low-close chart should do the job if I can just figure out what the 
ohlcPlot  function is expecting the time series data to look like.
Thanks for the help
Dean Sonneborn