No problems on osx; but i'm just now trying this out on my Hp Envy 14 Beats Editon Laptop with Windows Pro 64 and when I close out/shut down the Itch program, I get this constant message "Itch application has stopped working" here are the details

Problem Event Name: APPCRASH
Application Name: ITCH.exe
Application Version: 2.1.0.19
Application Timestamp: 4eefab0c
Fault Module Name: StackHash_6676
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Code: c000041d
Exception Offset: 736e4f0d
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: 6676
Additional Information 2: 66761be749cc9dbb7b1b17ec4533a1b8
Additional Information 3: 1d45
Additional Information 4: 1d45e9f25d9d765dfc8a0a62a3e71c63

This happens whether the laptop is plugged in or not plugged in; switchable graphics is turned off and the nvidia card is set to high priority/performance for itch; I also tried it with off too; no difference.
I uninstalled/reinstalled itch; I used the specific 64 bit driver from numark; still same thing happens.

I could use some help here