I've been running my antminer for about 24-hours using the following instruction:
cgminer.exe --bmsc-options 115200:20 -o stratum+tcp://mint.bitminter.com:3333 -u user_worker -p 123 --bmsc-freq 0681
Does this look healthy to you? I should add, it's not plugged into a hub or anything, it's straight into the USB port on the front of the PC.
I'm considering running it at 0781 once I've got a heat sink and CPU pad to put on it, any thoughts on this appreciated, thanks

You have a quite extreme hardware error rate...!!
I'm running mine with 0981 and in less than 12h I get this:
cgminer version 3.9.0 - Started: [2014-01-13 21:42:48] |
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(5s):10.34G (avg):10.87Gh/s | A:102450 R:0 HW:2298 WU:148.1/m |
ST: 2 SS: 4 NB: 75 LW: 152113 GF: 1 RF: 0 |
Connected to mmpool.bitparking.com diff 10 with stratum as user |
Block: bdc4fc94... Diff:1.79G Started: [08:58:47] Best share: 1.52M |
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[P]ool management [S]ettings [D]isplay options [Q]uit |
AMU 0: | 335.6M/335.8Mh/s | A: 3110 R:0 HW: 20 WU: 4.8/m |
AMU 1: | 447.2M/447.8Mh/s | A: 4320 R:0 HW: 43 WU: 6.2/m |
ANT 0: | 2.024G/2.009Gh/s | A:18920 R:0 HW: 151 WU:27.8/m |
ANT 1: | 2.672G/2.012Gh/s | A:19970 R:0 HW: 148 WU:27.9/m |
AMU 3: | 335.4M/335.6Mh/s | A: 3290 R:0 HW: 41 WU: 4.6/m |
AMU 4: | 335.5M/335.5Mh/s | A: 2900 R:0 HW: 26 WU: 4.5/m |
AMU 5: | 335.7M/335.9Mh/s | A: 3010 R:0 HW: 25 WU: 4.6/m |
BAJ 1: max 32C 0.99V | 4.676G/4.694Gh/s | A:37640 R:0 HW: 13 WU:65.4/m |
AMU 6: | 447.4M/447.7Mh/s | A: 1710 R:0 HW:1822 WU: 3.1/m |
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0.79% in Ant 0 and 0.74% on Ant 1.
You are getting 3.04% on yours!!!
I have nothing else than the original heatsink and a fan blowing through them (not from the top but from the side).