It's probably your internet connection- it is probably so unresponsive, it gives up before the image arrives! Try tweaking your connection. To download TCPOptimizer click here and
use the optimized dial-up settings if you use an ordinary modem. If you use ADSL (unlikely given your symptoms) choose custom settings and use an MTU of 1458 together with an RWIN of 13000.
Failing the above try another browser such as the wonderful Mozilla 1.3 click here (which you should try anyway ;-) )