Gsa-4160b Problems

I have recently purchased an LG 4160B DVD Combo Drive. Sometimes it works and othertimes it does not. Alot of times it stops part way through the burning process and others it will just sit and flash a slow green light when a dvd is put into it to watch. I believe I am running the A.303 firmware.

Any help would be appreciated!

My Computer specs are as follows:

Abit NF7-S Motherboard
AMD AthlonXP 2500+ (Barton)
Corsair PC3200 400Mhz XMS RAM (512 Mb)
MSI FX5200 128 Mb Video Card
Maxtor HDD X 2 (80 Gb SATA and 60 Gb IDE)
LG 24X10X40 CDRW
LG GS4160 DVD Combo Drive
Iomega Parallel Zip Drive
USB 2.0 + 1394 Combo Hub
Vantec Processor Fan
Enermax 365W Power Supply.

Running Windows XP with Service Pack 2

Hooked to internet through DSL with a D-Link Router.