Mudbox 2014 Crashes on Startup

[Anonymous]

Hey guys, 

Mudbox keeps crashing whenever I try and start it up. I've updated my graphics drivers, deleted the folder in my Documents, uninstalled, reinstalled, repaired etc. Can't seem to find the issue. At the moment i have been using Mudbox 2013 because that works. I guess i could keep using 2013, but our computers at Uni have the 2014 version, and it's a bit of inconvenience having to export as an FBX (As i have to flatten my model causing me to lose my layers) 

Here is what comes up in the log when the application crashes. I have no idea what it means so if anyone can shed some light that would be much appreciated! 

Faulting application name: mudbox.exe, version: 8.1.0.164, time stamp: 0x5212acaa
Faulting module name: Pen_Tablet.dll, version: 5.2.0.6, time stamp: 0x4a5dfd8f
Exception code: 0xc0000005
Fault offset: 0x0000000000006804
Faulting process id: 0x990
Faulting application start time: 0x01cfbcfff5165265
Faulting application path: N:\Autodesk\Mudbox 2014.5\mudbox.exe
Faulting module path: C:\Windows\system32\Pen_Tablet.dll
Report Id: 3492d1b9-28f3-11e4-9584-b398a637405d

Thanks!