J-PAC display problem, yellow light flickering

[Kokapetl]

I have a strange problem with my J-PAC where sometimes for unknown reasons, the screen display messes up.
There appears to be some vertical-hold distortion and the display looks dark and flashes brightly every so often (the yellow light on the J-PAC was also flickering on and off at the same time).

I still don't know what causes it (it only happens some of the time) but I am able to fix it by disconnecting the J-PAC's USB connection to PC and then plugging it back in again.
Anyone know what the problem may be or how to fix it? Thanks in advance.

[Kokapetl]

bumping, as i still have no idea how to fix this.

[MonMotha]

This sounds like a problem with your JPAC.  I'd suggest getting in touch with Andy.

[SailorSat]

Sounds more like the USB Port is switching to some kind of standby mode and the J-PAC constantly going on/going off.
Maybe try to disable power saving features for that usb device.

[Kokapetl]

Sounds more like the USB Port is switching to some kind of standby mode and the J-PAC constantly going on/going off.
Maybe try to disable power saving features for that usb device.

I've already mailed Andy about it but I'll try that as well.
Thanks for the replies.

[MonMotha]

Oh that's right.  The JPAC is fully USB powered.  Yeah, that's probably what it is.

I was thinking that the sync check/block and video amp on the JPAC was fully separate from the USB stuff, which it is...except for power.

[Kokapetl]

Sorry for the late update. I sent it to Andy and he sent me a working one back. So, it seems something must've gone wrong with it.