I installed Geth, and successfully synced the blockchain. However, regardless of whether I use Ethminer, Ethminer with Stratum Proxy, or qtMiner; I always get the same error. It doesn't really throw an error; the mining application just crashes. For ethminer, the command I used is:

ethminer -U -F http://eth-eu.dwarfpool.com:80/0xc780f6a9de1cca4e3e5bb25e9dfe0ee52d6d87a6 (source)

The output I get is:

Forked from github.com/ethereum/cpp-ethereum
CUDA kernel ported from Tim Hughes' OpenCL kernel
With contributions from RoBiK, tpruvot and sp_

Please consider a donation to:
ETH: 0xeb9310b185455f863f526dab3d245809f6854b4d

Using grid size 8192, block size 128

Found suitable CUDA device [GeForce GTX 980 Ti] with 6442450944 bytes of GPU memory
miner  15:47:47|main  Getting work package...
miner  15:47:47|main  Grabbing DAG for #129656ac…

When I use ethminer with Stratum Proxy, I get this line of output while ethminer is running:

2017-06-22 16:48:19,914 INFO proxy # Hashrate for 2130706433 is 0.0 MHs

Here's the troubleshooting I've tried so far:

• Using different miners (qtminer, ethminer, etc.)
• Using different mining pools (dwarfpool, ethermine, etc.)
• Clearing the blockchain and resyncing more times than I can count
• Running mining software both with and without simultaneously syncing with Geth

I am attempting to mine on my Windows 10 machine with a NVIDIA GeForce GTX 980 Ti card. At this point, I've spent several days reading/trying everything I can. I suspect there's something dumb that I overlooked. Any thoughts? Thanks!