Region capture causes black screen

  Running HyperSnap 7.14.0.1.  When I do a Ctrl-Shift-R, to capture a region of the screen, the cross-hairs and guidelines appear, but the entire screen goes completely black.  Fortunately, the desktop reappears when I hit Esc.  Usual stuff - uninstall/reinstall, cold boot, etc.  but the problem persists.  I have dropped back to 7.13.0.5, and karma has been restored.
Environment:  Win 7 Pro, SP1. 
Help, please!
Thanx

 
Please provide this additional data: 
Exact HyperSnap version in use (from Help/About menu): 7.14.0.1______ 
Windows version in use: 7 

Hi,
 
I have same problem with one of our user.
At start it works fine but after multible captures (maybe after 500 screenshots) screen goes black when trying to capture.
 
 
Windows 7 x64 SP1 / Hypersnap 6 (latest version) / Lenovo ThinkPad T420s with intel HD graphics

The issue Tom reports above is releated to Internet security software, please read more at:
http://www.hyperionics.com/hsdx/hs4faq.asp#ZAForceField
 
The blank screen after 500 shots may be a different issue, e.g. the program running out of memory, if you accumulate all the shots inside HyperSnap window and never close the sub-windows (tabs) with the shots. If you use something like auto-saving all shots, or auto-copying them and then pasting to another program, you don't need this accumulation. You can change this with "Capture Settings" (under "Capture" menu in HyperSnap 6) - "View & Edit" tab - select "Replace image in the current window..." option.
 
Greg

I had the same issue and found it was being caused by the Trusteer Rapport product http://www.trusteer.com/) which I had installed to protect from phishing - the rapport product has a function to prevent screen capture - it says for protected web sites - I guess if any site in the list is open in any browser window or tab it was stopping capture - go to the rapport console and then on page 2 choose "edit policy" and set block screen capture to never.  Help text says :
"Rapport blocks screen capture attempts while the browser presents a protected website. Programs on your computer that try to capture the screen get a black image. Malware might try to capture the screen when sensitive information (such as personal information) is presented."