XNA requires at least a shader model 1.1 Graphic Card. Check if the computers which can´t display correctly suports shader model 1.1 at least.

Try to use Windows Movie Maker. Publish in your own computer. On the format screen choose the 3rd option (My Configurations) and select Windows Media HD for Xbox 360 (PAL) (6,9 Mbps), this wil make a .wmv in 720p that should work. Play around with other configs except the DV-AVI (PAL) because its .avi or the first 2 options because uses ...

[quote user="Byron Nelson"][quote user="tanliyoung"]Thanks, Byron. But I just found that we can use 3D Exploration to view .max file and convert it to .x file. That is quite convenient.[/quote] I'm curious if you've tried that & got it to work yet.  Usually .Max support requries that 3DS Max be installed ...

You can also convert to .fbx using the FBX Converter instead of the 3Ds Max FBX Plug-in.

[quote user="Cesar Fazani"]Hi, I managed to implement UVOffsets in ShaderInstance technique. But how to get the instanceIndex on HardwareInstance technique, or there is some other way to use UVOffsets with HardwareInstance? Thanks in advance. [/quote] I managed to implement in HardwareInstancing now. If someone find it ...

Hi, I managed to implement UVOffsets in ShaderInstance technique. But how to get the instanceIndex on HardwareInstance technique, or there is some other way to use UVOffsets with HardwareInstance? Thanks in advance.

I think you should first read some basic tutorials that cover how shaders works. In Petri´s Tutorial 1: Ambient light you will find a introduction about shaders. He also have several good tutorials you should look at. I think you should study a little with examples and tutorials from the web before try by yourself. Until you get it right.