CAN Jaguar flashing woes

[candreasen]

This year (due to major issues last year with PWMs falling out or breaking) we decided to try CAN on the jags used for our main drive motors. I pulled out all the parts in the CAN upgrade kit from 2 years ago and got to work but encountered a million problems with different cabling and software downloads but eventually I got it to where I believed it should be working. Needless to say it didn't work. The main problem I was having at the end is that the mdc-comm software I am supposed to use to flash the new firmware won't start up, when I click it a blank windows pops up with a loading cursor and then it stops responding (despite the fact that the software used to start up). I've tried a million configurations for the serial to rj11 ( I believe it is actually backwards if you go by the colors) and I have a terminator plug on the non-serial can port (100ohm resistor across 2 & 3). My one idea is something to do with the hardware or drivers of my USB to serial adapter since when I decided to try reinstalling them device manager never got anywhere removing the device and then I had to pack up for the night so I didn't get to try after rebooting the laptop. Has anyone else had this issue? Also if this doesn't belong in this section it can be moved.
Thanks,
candreasen