The main image is 600K and there are 31 subsidiary images, which total over 400K, so many systems have insufficient memory. The subsidiary images use alpha-transparency, which is not supported by some browsers. The time to compose the resulting composite image may be large, exceeding the download time.
My own experience with various browsers is as follows:
| Browser | version | performance |
|---|---|---|
| Internet Explorer | 6 | Does not work, as alpha-transparency is not supported. |
| Internet Explorer | 7 | Works well. |
| Mozilla | 1.0/5.0 | Works well. |
| Netscape | 4.7 | Does not work at all. |
| Netscape | 6 | Works well. |
| Opera | 5 | Does not work at all. |
| Opera | 6 | Works, but with an irritating error in registration of the images. The overlays appear ten pixels south of where they should be. |
| Opera | 9 | Works well. |