750 Ti fails with cuModuleLoad() 301 and cuMemAlloc() 1 errors

Using a Geforce 750 Ti on ubuntu 14.04 x64, with CUDA 6.0-37 and Nvidia 334.21.

cudaExample0.sh fails with cuModuleLoad() 301:

cudaHashcat-1.20$ ./cudaExample0.sh
cudaHashcat v1.20 starting...

Device #1: GeForce GTX 750 Ti, 2047MB, 1137Mhz, 5MCU
Device #1: WARNING! Kernel exec timeout is not disabled, it might cause you errors of code 702

Hashes: 6494 hashes; 6494 unique digests, 1 unique salts
Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes
Applicable Optimizers:
* Zero-Byte
* Precompute-Init
* Precompute-Merkle-Demgard
* Meet-In-The-Middle
* Early-Skip
* Not-Salted
* Not-Iterated
* Single-Salt
* Scalar-Mode
* Raw-Hash
Watchdog: Temperature abort trigger set to 90c
Watchdog: Temperature retain trigger set to 80c
Device #1: Kernel ./kernels/4318/m0000_a1.sm_50.64.ptx


ERROR: cuModuleLoad() 301

----------------------------------------
cudaExample400.sh and most other hash types I've tried fail with cuMemAlloc() 1

./cudaExample400.sh
cudaHashcat v1.20 starting...

Device #1: GeForce GTX 750 Ti, 2047MB, 1137Mhz, 5MCU
Device #1: WARNING! Kernel exec timeout is not disabled, it might cause you errors of code 702

Hashes: 1 hashes; 1 unique digests, 1 unique salts
Bitmaps: 8 bits, 256 entries, 0x000000ff mask, 1024 bytes
Rules: 1
Applicable Optimizers:
* Zero-Byte
* Single-Hash
* Single-Salt
Watchdog: Temperature abort trigger set to 90c
Watchdog: Temperature retain trigger set to 80c
Device #1: Kernel ./kernels/4318/m0400.sm_50.64.ptx
Device #1: Kernel ./kernels/4318/bzero.64.ptx


ERROR: cuMemAlloc() 1

The cuda demos from the 6.0 install run fine, I assume I'm just hitting early compatibility bugs with the new versions of everything.

Any advice?