Lt & Psltscales reverting

I was using ACAD LT 2010, and recently switched to the full version. But now, all of my drawings have different ltscales than they used to (9.8 or 0.4). However much I change the scales and save, it always reverts back as soon as I switch from modelspace to a viewport tab, or change any linetype settings, etc. How do I get it to save my settings?

Are you using metric or imperial linetypes?

Are you using metric or imperial linetypes?

I'm not sure. How do I tell?

I'm not sure. How do I tell?

type MEASUREINIT at the commandline, press return, then F1 (or whichever button is assigned to your help files)

"Cannot find help file: acad.chm"

MEASUREMENT typed at the command line will return 1 for metric and 0 for imperial.

I got 1 for metric.

Do you know what might be causing this?

I was giving advice on how to find out the information that ReMark was asking you.

I was hoping that now you had that information, that he would continue with your initial request.

Are you using metric or imperial linetypes?

They are in imperial.