Connecting ARM of OMAPL138 with XDS510USB causes Error Initializing emulator error

Hello,

I am currently trying to connect an XDS510USB to the ARM of an OMAPL138 per the instructions listed at http://processors.wiki.ti.com/index.php/How_to_connect_to_the_OMAP-L138/C6748_EVM_board_using_CCS%3F#XDS100v2.2C_XDS510_or_XDS560_external_emulator_-_DSP_.2B_ARM

I have one setup where these instructions work fine, but on another, I get the following error:

TI MSP430 USB1_0/MSP430

Error initializing emulator:

No USB FET was found

CCSv4.1.2.00027 - installed with 30 day trial, Platinum version

Gel files downloaded from Logic http://www.logicpd.com/products/development-kits/zoom-omap-l138-evm-development-kit#tabs-som-2 

Virtual ports (per http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/p/3286/11558.aspx#11558) were played with but without any resolution.

Any ideas on what could cause this error or recommended solution?

Thanks,

Katie