Access Violation Error

When I try to edit a php file, I get the following error:

Exception description:

Access violation at address 0 in module '.exe'. Read of address .

Exception class:
Exception address:
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Stack list, generated 2/7/2014 4:39:41 PM

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Please send such logs to Jan by mail (see Help > About PSPad)
Do not post them to the forum, thanks.

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Program : C:\Program Files (x86)\PSPad editor\PSPad.exe 4.5.7 (2450)
System : Workstation x64, Version: 6.2, Build: 23F0,
Processor: Intel, Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz, 2590 MHz MMX
Display : 1366x768 pixels, 32 bpp
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Active Controls Hierarchy:
TPSSynEdit ""
TfChildEdit "_1"
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This happens as soon as I type the "a" in "<a". I tried this in a couple of different files and the same thing happened. If I type another letter after the "<", it doesn't happen. Very strange. Any help would be appreciated.

Edited 3 time(s). Last edit at 2014-02-08 22:17 by Stefan.

Hello

Switch off the WordWrap mode (Ctrl+W). The bug is related with Windows 8.1 upgrade