Graphics device history recording problem (Previous and Next utilities)

I use 1.7.0 version under Windows XP.

Problem:
When graphics device history recording function turned
on, suppose I source a file containing lines:

plot(graph1)
plot(graph2)

I see the graph2 in the graphic device, assuming
graph2 is the last plot in the file. Now using
"Previous" under history menu, I get graph1 as
expected. But after that, using "Next" does not show
graph2. Is this a normal behavior? If so how do you
get back to graph2? I have observed the same behavior
in 1.6.2.

Thank you for your input.