System error after installing DVD Burner on 46000

I bought a Digital Max 16x DVD burner from OM and intalled it onto my 4600. There is a CDRW originally installed. To make the DVDRW as master, I put the CDRW to 2nd bay and DVDRW to 1st bay. Both of them keep Cabel Select setting. Now both of them are usable, play moive, music, burn disc. But from yesterday, the OS(winxp) just changed to blue screen from time to time and showed Kernel_Data_page_error. It never happens before installing this DVD burner. I checked the error code (0x7A(...,9C,...)) on Windows support. It seems there is some error when reading data from disk. But it may wrong. Does anybody know if it is a disk problem or DVD burner caused problem? Thanks.