System freeze after started OpenGL games in fullscreen mode.

A. THE BUG/ISSUE: System freeze after started OpenGL games in fullscreen mode.

  1. What you did: Started OpenGL game see #6
  2. What actually happened or you actually saw: System is freeze. No any way to return to OS.
  3. What you expected to happen or see: Game is started.
  4. How you tried to fix it & what happened: This problem is solved, if I disable defense+, or if I add these apps to Defense + Rules, and I set these apps to TRUSTED.
  5. If a software compatibility problem have you tried the compatibility fixes (link in format)?: -
  6. Details & exact version of any software (execpt CIS) involved (with download link unless malware):
    Problem with these games (example):
  1. Whether you can make the problem happen again, and if so precise steps to make it happen: see #1
  2. Any other information (eg your guess regarding the cause, with reasons):
    My video card is ATI 4850.
    No error log in defense events.
    Game mode is default (OFF).

B. FILES APPENDED. (Please zip unless screenshots).:

  1. Screenshots of the Defense plus Active Processes List (Required for all issues): - (not needed of this problem)
  2. Screenshots illustrating the bug: - (black screen)
  3. Screenshots of related CIS event logs: - (no log)
  4. A CIS config report or file: -
  5. Crash or freeze dump file: - (no dump file)
  6. Screenshot of More~About page. Can be used instead of typed product and AV database version:see attached file, name is “about”


  1. CIS version, AV database version & configuration: CIS firewall free 5.10.228257.2253
  2. a) Have you updated (without uninstall) from a previous version of CIS: NO
    b) if so, have you tried a clean reinstall (without losing settings - if not please do)?:
  3. a) Have you imported a config from a previous version of CIS: NO
    b) if so, have U tried a standard config (without losing settings - if not please do)?:
  4. Have you made any other major changes to the default config? (eg ticked ‘block all unknown requests’, other egs here.): See attached files (clipboard 01-04).
  5. Defense+, Sandbox, Firewall & AV security levels: On summary page, only firewall and defense+ available, these settings is SAFE.
  6. OS version, service pack, number of bits, UAC setting, & account type: Win7, SP1, 64bit, UAC is default (full)
  7. Other security and utility software currently installed: Avira Antivirus free 12.0 (latest)
  8. Other security software previously installed at any time since Windows was last installed: None.
  9. Virtual machine used (Please do NOT use Virtual box)[color=blue]: None.

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Thank you for your issue report. I am glad to tell you this issue is already known, well documented, and awaiting a fix. We are not looking for further reports at present. A temporary fix, if there is one, may be listed here - see Other and General (v). I am forwarding this post to a relevant help forum so you can receive further help if needed. Please also look in the FAQ in this help forum, as it may also be of assistance.

I’ve been experiencing this glitch for what seems to be a -VERY- long time. And judging by some of the dates of threads discussing the same issue, the problem has been around for years. It’s absolutely ridiculous that this hasn’t been fixed yet.

And no, disabling the Defense module does not count as a fix. Neither does setting it to Training or Trusting the application. In my opinion it’s bad practice to be telling people to do so, as this is entirely unsafe.

You say, this is known problem, okay, thanks for the answer.


I don’t know weather I run OGL apps or not, but whenever I run fullscreen app for the first time (for example it happened when I run ZSNES emulator for the first time) everything freezes. My LCD panel is whole black, but it’s backlight works. I can’t do anything. The only button that works is RESET on my PCs case - any CTRL+ALT+DEL or ESC or Win or ALT+TAB or whatever doesn’t work. Mostly there’s no info in the D+ log - any. The only thing that I need in this case is that D+ alerts should be displayed always on top of everything or they should just turn off fullscreen and put programs to windowed mode. I remember that in the past I saw such behavior of CIS/CFP but some time ago it gone, and now if D+ is turned on and fullscreen is on - I can’t see any alerts - just blank black screen and I need to reset :confused: . Please do something with it :confused: