Help! Data errors!

So I sit down and plug in the laptop, ready to make a few runs. Beep, beep, beep. Thinking this is odd because I turned off beeps for DTC errors I take a look. Data errors! The light is flashing on and off like a jack ****ing russell terrier. Eventually the PCM link just dies. Recycles a few seconds later, and then dies again a few seconds later. What's going on? I haven't had this problem before, I've used the cable lots, programmed a few times without any problems, so why all of the sudden? After playing around with the laptop for a while the connection works enough to not kill the connection, but still log tons of data errors.

I noticed that if I drive off while it's connected the data errors become much less frequent. As soon as I stop, or idle it beeps quite quickly. I'm thinking this is rather ironic, because the whole reason I'm out there is to troubleshoot a nasty idle stumble.

http://web.camaross.com/forums/showthread.php?t=306843

Is my PCM dieing? The wiring in my cable worn? Laptop acting up?

Here's a few PCM logs:
I include csv files in case someone wants to take a look at them and analyze them for something else, but they obviously don't contain the data error bit on frames that contain errors.
(Just basic idle, lots of errors)
http://members.shaw.ca/sasukekun/Oct4.uni
http://members.shaw.ca/sasukekun/Oct4.csv

(5 minute drive around the block)
http://members.shaw.ca/sasukekun/Oct4-2.uni
http://members.shaw.ca/sasukekun/Oct4-2.csv

Well, did some more playing with this... I have verified that it's not the cable causing the problems. When I do a full read of the PCM when the car is off I get no data errors in the file. The checksums all check out fine. So it's something else.

I'm not getting anywhere. I've been trying to find someone locally with a f-body pcm but with no luck. Anyone got any suggestions?

Are you running a power inverter for the laptop? When ever I turn on the power inverter I have plugged into my cigarette lighter datamaster starts showing data errors.....

-Rob