Well, something interesting happened yesterday/last night, so far I have has no issues when connecting to my pc via usb, it connected & I could transfer files blah blah blah & thus far I had been running the stock kernel & had been using the built in cpu setting. Yesterday more or less out of boredom I decided to install SetCpu & throughout the day I probably flashed & ran 5 different kernels, I also installed the df app from the market & a few other apps as well & I did have the vm heap at 32 but decided to try it at 24. Last night before going to bed when I went to plug my phone into my pc to charge overnight, It would not connect, the debugging would appear as usual but no usb indicator of connection, so I unplugged & re plugged a few times with no result, I went to bed. This morning of course I was reminded of the issue when retrieving my droid from the pc, so I tried it a few times again with no success, so out of curiosity, I wiped everything & out of curiosity I restored to a backup I had made just prior to doing any of the things listed above (so i was flashing to the same setup I had when the usb had worked)....rebooted, crossed my fingers & plugged in the usb & what ya know it worked again? Im not to sure how or what it may have been but in my case, it must have been something I had changed that caused the usb issue...just some fyi !!