Question SP_MDT Problems with Com and MTK6592

HI guys i hope write on right thread, however if not , please move it.

I downloaded this tool http://www.mediafire.com/download/ms.../SP_MDT_src_v3[1].1344.00.00-TestVersion-2.rar

i have a phone with MTK6592

i try to use it but the software give me error like picture

The problem is seems not recognized the COM, but i try also to remove and reinstall driver

The problem also is the old version of SP_MDT work fine with other MTK and recognized fine the com port.

What can i do??
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Name:	2014-06-13 10_22_58-SP Multi-port download tool [V3.1344.00-A2013.11.14]--Test Version-4.png
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