When I change the language Font Script doesn't change to Cyrillic, though Arial font it writes in Cyrillic. I suppose the Cyrillic fonts I use are older and with different codes from the Windows fonts, but I was able to use them without any problems with AC8.1.
I still experience problems with shortcuts - when Windows is in Cyrillic mode shortcuts do not work at all with my Cyrrilizaion application and work from time to time with the built-in Windows cyrillization - usually on the third or fourth hit.
AC had always had minor problems with Cyrillic and I think now is the time to list them all because in AC9 and Plotmaker 9 they have turned into a serious problem:
1. In AC 8.1 shortcuts for Copy, Cut ,Paste, Quit and New did not work if AC was started when Windows was in Cyrillic mode. I had to exit AC, switch Windows language to Lattin (US) and restart AC.
2. In AC 8.1 the shortcuts for distance (x, y, r, a) did not work if Windows was in Cyrillic mode. I could only enter distance values in Latin mode. All the other shortcuts worked.
3. In AC 9.0 and Plotmaker 9 nothing works when Windows is in Cyrillic mode.
P.S. Problems with shortcuts that do not work in Cyrillic mode are common for many applications, including AutoCAD and Photoshop. Users in Bulgaria have learned to accept it as a fact. I just want to get back to the AC 8.1 level of Cyrillic compatability.