Really weird USB charging/data issue

[mta2]

So I've been using regular USB chargers to charge the phone. I have a cheapo car charger that was working fine and charging the phone. For some weird reason now, those USB chargers will not work with the phone. The phone basically does not detect them plugged even though this was working fine since I had the phone.

Now the only way I can get the phone to charge or connect to the computer is to use that HTC plug that has the video out and the headphones ports.

I'm completely baffled as other chargers were working fine. I haven't installed anything new in the past couple of days.