Weird video problem

[Remington]

FreeBSD bart 5.2-CURRENT FreeBSD 5.2-CURRENT #1: Wed Jun  9 21:09:45 PDT
2004   root at bart:/usr/obj/usr/src/sys/GENERIC  i386

I am current experiencing a weird video problem with current. I have a
VAIO GRX-570 laptop. I left if idling for awhile, when I came back the
screen was off, it looks like it suspended itself, except it never
turned back on so i forced it off. On restart the screen flickers for
about 1/4 of a second, and it does this every 30-60 seconds. This is
extremely annoying. I assume this is ACPI related, has anyone
experienced this before or know how to fix this issue?