Earlier realized my HL-DT-ST CDRW/DVD GCC 4482 Drive didn't read Blank DVDs, but perfectly read Blank CD's. so, i tried to update it to see if it would work. but when I did, i guess it was the wrong update, because right then and there, it shut off. it won't open, and when i open it using the tiny hole found under the tray, it doesn't close. The Drive Light is not on at all, not even when i boot the computer. i looked around but haven't found any successful fixes for this yet. can someone help? I need to fix this.