[otrs] Non-translated symbols in field "Subject"

When I create e-mail ticket in OTRS or receive autoanswer that I see in a field "Subject" instead of russian (cyrillic) letters strange symbols in my e-mail program (Mozilla TB and The Bat!) . For example: Subject: п©яп╬п╡п╣яп╨п╟ This is word: "проверка" (test) What can recommend? -- Dmitry Kambur TeNeT ISP System Department E-mail: tracer@Te.NeT.UA