The computer reboots immediately upon attempting to DLA-write to a CD-RW that has been written to before. I've tried this with multiple CD-RW's and both the installed CD/DVD drives. I don't recall this happening prior to installing SP2, but I haven't found any references to the problem in any of the Windows forums. Writing to new blank CD-RW's is ok, but reformatted CD-RW's is not ok.
The DLA/UDF software is by Veritas, and came with the Sony drive (about 18 months old). The generic drive is about 3 months old.
Another oddity is that the monitor will occasionally go blank for a second and then come back. I've tried it with two monitors.
The PC is connected to an APC UPS, and the monitor is powered from the wall through an MOV-protected filter/multi-outlet box due to the limits of the UPS.
OS: Win XP, SP2
System: Shuttle 32L, AMD 2400+, 768 GB RAM, 120 GB Western Digital and 160 GB Seagate, Astec 300 W PS, nVidia graphics card
Optical drives: generic 52x/16x CDR/DVDR, and Sony DRU510 CDR/DVDR