Invient chart Plot problem

hi all,

i started using the invient chart . i created a spline chart with date on x axis and values on y axis. i obtained the values for X and Y from database.
The problem is that the date( X axis ) shows a decrement in date when plotted in chart. but in database it show exact value.

eg; let y= 13.33 and x = 8 oct 1998 form DB

but in chart it shows y= 13.33 and x= 7 oct 1998.

is this bug or problem in my side…

pls anyone find the solution.

thanks in advance.