JavaScript is not working - many web pages will experience problems or fail!

If you can see a black tick then browser can display ".gif" pictures

---

You should see 4 squares, 1 red, 1 green, 1 blue and 1 the same colour as your background
Wrong red, green, blue colours can indicate a display problem/limitation
A background box colour problem usually indicates browser not showing transparent gif correctly

---

You should be able to see white boxes with .bmp .gif .jpg and .png labels
If any of the boxes are missing, your browser cannot show the picture type

---

If your browser can display animated gif, there should be a box containing a black line and the line should rotate slowly

---

If most of the background on this page is pale yellow, your browser accepts style sheets.
Any other colour (including black or white) indicates a CSS problem that would make most websites look very strange.

---