Well that didn't work! Lol.

I tried loosening the screws and pulling it into alignment but I have had no luck yet.

I cant figure out how to measure it accurately. I tried using the engineers square and it seemed to be misaligned and then it looked square after the attempted fix but it produced the same problemelogram.

Measuring the diagonals seems a bit inaccurate as the aluminium extrusion can move in relation to the tracks when the screws are loose.

I tried a couple of different times and I see no change in the problem so I must be doing it wrong or maybe this is not where the problem is.

Stripping it down, twisting it, rebuilding and making a test cut take a long time too!

Could someone recommend a better method and/or tools?

...Or any suggestions at all.

Thanks again,

Kevin.