SunOS 5.10 Screen Blanks Out

E3500 with Solaris 10 - 118833-17 patch level has a problem with screen blanking out after a period of inactivity. Once blanked out it will not wake up. System appears to be running normally. The only way I have found to avoid this is to login to the command line window. Has anyone ever seen this? Am I missing something simple here, like a special key that has to be hit?

[380 byte] By [dwrussell] at [2007-11-26 9:09:47]
# 1
As it so often turns out, the answer was simple.Just had to disable the power saver.Still- I don't know why this was necessary.
dwrussell at 2007-7-6 23:28:02 > top of Java-index,Administration Tools,Sun Update Connection-System...
# 2
This issue is a known issue with certain video cards in sun servers. There is a bug ID out there for it.
route1 at 2007-7-6 23:28:02 > top of Java-index,Administration Tools,Sun Update Connection-System...
# 3
OK, Thanks.In order to not start the powerd at each boot I entered following command:svcadm disable system/power
dwrussell at 2007-7-6 23:28:02 > top of Java-index,Administration Tools,Sun Update Connection-System...