I have programmed an EA to test a trading system with 3 yrs 5min data (from 2003.12.28 to 2007.1.6) in MT4. It worked just fine with MT4 build201 and before. Then I upgraded to build202, things began to go haywire. Whenever I try to test my system with the same EA, it jumps to 2005.12.26 to begin the test, that is, it totally ignores the data from 2003.12.28 to 2005.12.26. and the same happens in build203 as well. But as soon as I switch back to build201, all problems are gone. I'm really concerned with this strange phenomenon. I'm hoping that this is caused by bugs in MT4 rather than in my own EA. has anybody experienced similiar problems lately?