Ok, I've been having a somewhat weird problem with cgminer for a while now. I've tried searching but I couldn't find any relevant info. I'm running windows 7 x64. When I start cgminer it crashes immediately. There's no error message shown, even with -D command line option. I get a "cgminer has stopped working" dialog from windows. It doesn't seem to be related to my devices, it happens if I use one or two of my 7970s, or no GPUs and just the two Cairnsmore1's I have connected. I have tried multiple versions of cgminer (2.5.0, 2.3.4(Enterpoint modified)) , and the issue occurs on both of them. I've downloaded a fresh cgminer and the issue occurs with it as well. I have installed multiple AMD driver versions (12.3, 12.4, 12.6, 12.7) and the issue occurs with all of them. To my knowledge nothing has changed since cgminer was working properly.
I can get cgminer to run by restarting windows (I have cgminer included in the startup folder to run automatically) and not touching anything. It'll run properly until I try to move the cgminer window or open a browser or media app. Then it crashes in exactly the same way, and crashes with each subsequent restart.
Now the strangest part is that this happened to me about a month ago out of the blue like now. I tried everything I could think of to fix it, and got frustrated and walked away for a while. I came back (maybe 12 hours later) and ran cgminer and it worked flawlessly up until last night.
I used the debugging option via visual studios and was able to get this, no clue if it'll be of help at all:
Unhandled exception at 0x62209ccc in cgminer.exe: 0xC0000005: Access violation reading location 0x6223efac.
If anyone could help I'd appreciate it, I can't think of anything else I can try to get this working again (other than just waiting it out, for whatever reason that worked before). Thanks guys.
Tried increasing the size of your dos prompt window before starting it?