HTC Droid Eris :: Phone Won't Connect To PC / Way To Do

I HAVE ALREADY READ THE OTHER THREADS SIMILAR TO THIS!!

My PC won't recognize my Droid Eris and vice-versa. It used to recognize it sporadically, but now it's not recognizing it at all. Null. Zero. Nada.

The USB option is not coming up in my notification bar, so I don't have any option to tap "mount" and the few times my laptop did recognize it, all I got was "USB Device Not Recognized". The only reason I even know the plug works is because when I plug it in, the phone starts charging.

Here's what I've done so far trying to solve the problem:

- I've gone into Device Manager and tried updating drivers with no luck
- I've uninstalled/reinstalled HTC Sync with no luck
- I've rebooted both the phone and the PC several times with no luck
- I've enabled "disk drive" option under default connection type with no luck

And I know everyone's going to point out that there are a dozen or more threads dedicated to this topic, but all those are either

A) because someone didn't know to tap "mount"... or
B) Have gone so off-topic that the thread is irrelevant by this point

So has anyone found a solve to this problem yet?

Note: I'm rooted and I have leaked 2.1 installed. But this has been going on even with 1.5 before rooting.