[Algorithms] an opengl problem

[tSG <ts...@ma...>]

Hi!

I'm new on this list, so i describe myself. :)
I'm Gabor Simko (tSG), and I'm hungarian.
I like visualc,asm,free pascal and opengl.
This was that. :)

So my question:
  i have made a little program in opengl.
  It puts out 500 textured cube, but the
  problem is that it is very slow.
  I don't use any lights or fog etc...
  The resolution is 640x480x16million colors.
  Why could it be so slow?

Thx to everybody
    tSG