Tickstory

HI DEAR About upgrading this 1.53 version if i use 1.53 verion to open MT4 BUILD 840 the MT4 can not be supper it but i use 1.52 verion to line mt4 , it can supper it Even so , when i test the bars, the Modelling quality is Always show n/a Usually is 99%......... Please tell me the solution How to M...