Screen issues when exiting trade

[broker]

Hi,
Recently I've had a weird issue when I exit a trade. My screen will "blink". It almost looks like it turns off for a split second. I'm using Zen-fire. Been using NT for several months but this starting happening about a month or so ago. Don't have any screen issues with anything else. Any ideas? I've already reinstalled a couple times.
Thanks

[NinjaTrader_Jessica]

First, I would check to make sure you have the .Net 2.0 installed on your PC.

Second, I would create permission for NinjaTrader.com in your Anti Virus and Firewall.

Lastly, I would disable your windows security pop-ups and see if it helps.

It sounds to me like some part of you security stalling it for a moment.

[broker]

I reinstalled .net 2.0. Ninjatrader is already an accepted program in my firewall and AV. The flickering happened again today. My first trade is always the most noticable (it almost looks like my monitor shuts off for a millisecond). After the 1st trade it gets a little less severe although still occurs.

[NinjaTrader_Jessica]

I have heard of one other case with blinking and it was related to the video card.

Please see if this link helps:

http://www.ninjatrader-support.com/vb/showthread.php?t=5531&highlight=video+card