Line Type Scale Freakout

So not to long ago my boss had a problem with Auto CAD crashing as soon as he opened it. (he was running 2010) Now since he has since repaired his CAD the line type scale reverts straight to 25 even in old drawings. Any clue as to why this may be happening?

We also run Carlson in conjunction with the CAD. Could that be a contributer?

I do not know much about Carlson, but it sounds to me like there's some code (in ACADDOC.lsp perhaps?), that is setting the linetype scale sytem variable when he opens a drawing... Look for something like this:

(if (/= 25 (getvar 'ltscale))
 (setvar 'ltscale 25))

Currently most drawings in the office are set to a drawing default. Given that what your saying is true, how would i go about getting the variable set back to the default. Like i said though it's going this to ALL the drawings it opens new and old.

Based on my speculative guess...

One would need to check either the individual user's ACADDOC.lsp file, or in the event it is network driven, the network location for said file.

Open the ACADDOC.lsp file and see if you can find anything with the word "ltscale" (not case sensitive) in it. If so, post what you find, and I can hopefully advise further. If not, then then let me know that too.

[edit]

I just realized that I had not asked this question yet:

What are the linetype scales supposed to be (for new and old drawings)...?

[/edit]

....Now since he has since repaired his CAD the line type scale reverts straight to 25 even in old drawings.

Find a drawing where you KNOW the LTSCALE is not 25.

Open it and immediately run the "U" command until it says "Nothing to Undo"

Check the LTSCALE at that point.

RK, can you think of anything else (besides a .SCR or .LSP) that might set the ltscale during open..?

it seems that the culprit is in fact the secondary software that we run (Carlson). It seems that in the latest update that they have some form of a cad over ride. So Carlson is over riding the AutoCAD in some weird twist of fate.

In Carlsons Menu: See Settings; Drawing setup...