When doing the Sound relibility test, I found the MIDI loopback fails always at 41th loop in WinXP pro. When I run the lt 4 test case along for 20 minutes, it also has the same problem.

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00:05:01 lt 4 MIDI [4]: Received 2516, sent 45871 bytes. Errors on 1/5 device
s. Verified 41 loopback messages.^M

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Attached are the test runs:
- winXP_lt4.txt -- run lt 4 test case for 20 min -- FAIL
- winXP_lt4_1_2.txt -- run lt 4 test case with -1 -2 senario for 20 min -- FAIL

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The following is the failure message on the RC reliaiblity test run:

AMD-SLES
00:00:03 lt 4 MIDI [4]: ## FAILED: no MIDI loop device found!

WinXP
00:01:12 lt 4 MIDI [4]: ## FAILED on 'SB Live! MIDI UART': only received 0 bytes, but expected 766 bytes!^M
00:05:02 lt 4 MIDI [4]: Received 2134, sent 46418 bytes. Errors on 1/5 devices. loopback 1: 39 messages^M

JDS-Quicksilver
07:48:59 lt 4 MIDI [4]: ## FAILED on 'CS46xx [hw:0,0]': only received 0 bytes, but expected 1 bytes!
07:49:00 lt 4 MIDI [4]: ## ending: all MIDI devices had errors

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