So they say.....LOL.

your welcome. 

Glad to hear that, I love my x51 if only they could come out with one as a phone with the exact same performance!.

Theresa,

Having WMDC installed can you plug your Axim cradled (make sure the USB cradled has power coming in) on another USB port then follow the steps i mentioned. let me know if it works.

Glad to be of help. take care.

I too had to do a hard reset when I downloaded the latest ROM update (this could be the reason the USB To PC does not appear on your device); Not sure if that update is what is keeping you from Sync your device thou since you had it Sync at one point. For how long where you able to Sync before the Sync process got screwed up?

I remembered this happening to me once but it was right after I installed a Sync component on the mobile device and it interfered with the sync process. Make sure you are using the latest version of WMDC (6.1.6965). In the list of connection options I did not see "USB To PC" this may be due to a missing firmware upgrade from DELL, check their site to make sure your not missing one; Other then that I'm stumped for now but will do a bit more research to see what else i can find for you. here are a few suggestions

1) Have you tried Sync via Bluetooth? (if your device is capable)

The final solution would be to: (I think you may have done this already)

1) Remove All WMDC components via the Add Remove Programs
2) Reinstall WMDC
3) Reset your device to factory settings (hopefully you wont mind this)
4) Follow the steps mentioned on this post make sure your cradle device has electrical power coming into it (not just a connection from the cradled to the USB port)

Just to be clear: in the past you managed to get it to Sync with your PC but you did not have to do the "USB to PC" step? What OS Version is installed on the device?

lol.

That is odd, can you provide the specs of your mobile device? bios version? OS version?; prior to following the steps above where you able to Sync your device?