If it's very tiny, you are looking at the individual lcs elements (it's a sign you have the unit in focus). It's the lowest level of resolution in the projector and if you are projecting an image from your PC, that's the pixels you will see projected.
This is not a "problem", it's the nature of the system - just as there is a pixel limit on your lcd panel or monitor.
Try projecting a picture and then go up to the screen and you will see what I mean.
If it looks like a VERY tiny grid then that's an effect called "screen door." It tends to mainly plague LCD-type projectors and is a bit evident with DLP-type projectors. Unfortunately there is no fix for this issue.
Answers & Comments
If it's very tiny, you are looking at the individual lcs elements (it's a sign you have the unit in focus). It's the lowest level of resolution in the projector and if you are projecting an image from your PC, that's the pixels you will see projected.
This is not a "problem", it's the nature of the system - just as there is a pixel limit on your lcd panel or monitor.
Try projecting a picture and then go up to the screen and you will see what I mean.
If it looks like a VERY tiny grid then that's an effect called "screen door." It tends to mainly plague LCD-type projectors and is a bit evident with DLP-type projectors. Unfortunately there is no fix for this issue.