Hello, 
 
I keep on having this problem with Apex DC ++ where when I start a download it becomes  very unstable and read this error message at the bottom, "Error saving hash data: Access denied". It does not crash though. 
 
It may have something to do with the fact that the drive I run Apex DC off has become 'read only'. This is something I have no choice about as I access a University DC network as a computer lab assistant and can't run DC off the C drive (it rebuilds off an image after each reset). 
 
Any advice? Anyone seen this error? 
 
Thanks