[jitter] gloop shader patch and binding a texture

Hello,
The way this shader works is that it doesn't really do any texture 
lookup.  It just does a calculation based on the texture coordinates and 
generates texel values.  So, the tex0 error should be harmless.   If you 
aren't seeing anything in the GL window, that would indicate that your 
9700 mobility card is choking on this shader.  It wouldn't be the first 
time (see discussions of the td.rota.jxs shader).  It seems that the 
9700 has pretty strict limitations on the amount of math it's willing to 
do in one fragment shader.

AB