I have the curve 8330. I left my charger at my mom's house and bought a cheap one at Marshall's (a universal bb charger - it had 2 different attachments to fit into any blackberry) because I didn't want to spend $30 on a new one at Verizon. It worked fine but sometimes I had to make sure it was at the right angle to charge. Now that I got my old charger back, the original blackberry one, it doesn't work? Only the old, crappy charger works. What gives?
When you say that the Marshall's charger has to be at the right angle, do you mean you have to wiggle the charger? I think you may have damaged the charging port and that's why your original charger doesn't work. As for the screen coming on when you plug in your original charger, the plug made a momentary contact so the screen came on. However, the plug is not able to maintain connection so that's why the phone isn't charging.