Hello guys,
I'm struggling with opening QLDT. Everytime I try, this bug comes up right after starting up the QLDT

Problem signature:
Problem event name: APPCRASH
Application name: qldt.exe
Application version:
Application timestamp : 54beaf49
Fault module name: ntdll.dll
Fault module version: 6.1.7601.24214

The thing is - I have tried to change endcap dm_91 to dm_90 so I can look for particular demos in the QLDT (there is not chance for me to find some really spicy frags which I wrote down in any other programme, I havent found anything quite like effective as QLDT).
I have used this tip by Yakumo : "hold right shift and right click on your demo folder, select 'open command window here' then :
ren *.dm_91 *.dm_90

Is there anybody else with same troubles with QLDT? Does anybody has any idea with helping ?
Any help is very appreciated, thanks a lot :)